Deep Lens Survey : Real-time Transient Detection


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Current: CTIO, Nov 2002


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This page contains REAL-TIME information on detections of transient astronomical happenings from the Deep Lens Survey, currently being undertaken on the KPNO and CTIO 4-m telescopes using the wide-field MOSAIC imagers.

A by-product of this wide-field survey is the detection of transient astronomical phenomena, including Near Earth Objects (NEO), Kupier Belt Objects (KBO), Supernova (SN), and even previously unknown events which happen with such rarity that only a deep, wide field survey, such as this one, is even reasonably sensitive to them.



The table below contains recently updated information on objects detected during the course of this survey. These are extracted from the images in real-time using a combination of SExtractor for object detection and image subtraction to provide differenced images, from which we are able to identify transient, or "new", objects, after filtering out spurious objects like cosmic rays. These objects have also been inspected by eye and categorized as probably real.

We include the date, DATE-ARCH, when the object was added to this archive or updated, the date the object was most recently observed DATE-OBS (MJD), and the FILTER of this observation. Additionally, we include the RA and DEC (J2000, to ~0.5'' accuracy) of the object, a preliminary categorization of the nature of the transient, and a preliminary estimate of the magnitude of the variability (+/- 0.1 mag in R and B, +/- 0.5 in V and z). Two types of images are available for download: .jpg mosaics and .fits finding charts.

The mosaic page includes a time-series of JPEGs showing 200-pixel (50") postage stamps, with time increasing from top to bottom. The discovery mosic includes a template observation on the left, discovery image in the middle, and difference image on the right. Subsequent mosaics show a similar collection of images, or the new observation image only, in the case where a subtraction image was not available. The files are generally a few hundred kilobytes. In CTIO mosaics, East is up and North is to the right. For KPNO, East is down and North is to the left.

The finding charts are 3'x3' FITS images centered on the discovery position. The time in the header is the start of the exposure and the world coordinate system in the header is accurate to 0.5". The files are 3 MB. The images are zero-padded to maintain the object in the center even if it was near the edge of the discovery image. Your browser may not bring up saoimage/ximtool automatically on the FITS file. Right-click on the link to save to local disk.

Moving objects are submitted to the Minor Planet Center at the end of each night. For those objects which receive a designation, we provide a link to query the MPC database - new objects are indicated with bold font. For those objects which do not receive a designation, we provide our own ASCII list of positions and times.



To make things considerably more exciting, we will color code interesting transients using the following notation

Supernova
Unknown (stationary)
Variable Star
Rapidly Moving Transient
Slowly Moving Transient (< 2" / hr)
ID
EST DATE-ARCH
TYPE
UT-DATE-OBS (MJD)
FILTER
RA (J2000)
DEC (J2000)
MOSAIC
ADDITIONAL INFO
MAG
trans137
Jan 16 16:54
moving@11.4 ''/hr
2002-12-02 05:05:54.9 (52610.212441)
R
00:50:20.170
+13:11:52.62
time series
ephemeris
20.9
trans136
Jan 16 16:54
moving@11.4 ''/hr
2002-12-02 05:05:54.9 (52610.212441)
R
00:50:21.166
+13:04:27.25
time series
ephemeris
21.0
trans134
Jan 16 16:54
moving@16.6 ''/hr
2002-12-02 04:48:19.3 (52610.200223)
R
00:50:38.37
12:57:19.15
time series
ephemeris
21.0
trans103
Jan 16 16:54
moving@5.2 ''/hr
2002-11-28 12:22:42.9 (52606.515774)
z
09:18:46.028
+29:27:58.56
time series
MPC: J91C02H
20.0
trans104
Jan 16 16:54
moving@14.5 ''/hr
2002-11-28 12:22:42.9 (52606.515774)
z
09:18:33.030
+29:06:32.23
time series
MPC: 30231
19.4
trans105
Jan 16 16:54
moving@11.4 ''/hr
2002-11-28 10:06:04.3 (52606.420883)
z
09:17:37.209
+29:27:20.94
time series
MPC: 28378
18.2
trans121
Jan 16 16:54
moving@6.4 ''/hr
2002-12-02 06:18:05.9 (52610.262568)
z
00:53:46.417
+13:10:34.24
time series
MPC: K02TR3T
19.9
trans122
Jan 16 16:54
moving@10.7 ''/hr
2002-12-02 06:18:05.9 (52610.262568)
z
00:53:32.966
+12:57:14.00
time series
MPC: K02TR2C
20.5
trans129
Jan 16 16:54
moving@8.9 ''/hr
2002-11-28 13:00:35.5 (52606.542078)
V
09:23:39.818
+30:09:39.13
time series
MPC: 26967
18.0
trans130
Jan 16 16:54
moving@34.0 ''/hr
2002-11-28 12:48:00.2 (52606.533336)
V
09:23:08.49
29:45:46.24
time series
MPC: K00J10E
20.2
trans142
Jan 16 16:55
moving@7.4 ''/hr
2002-12-02 05:05:54.9 (52610.212441)
R
00:51:36.88
13:30:03.97
time series
MPC: 33221
18.4
trans77
Jan 16 16:55
moving@0.2 ''/hr
2002-11-28 03:48:10.7 (52606.158457)
B
(K02RA0B
+12:00:04.07
time series
MPC: K02RA0B
20.7
trans87
Jan 16 16:55
moving@5.0 ''/hr
2002-11-28 06:14:03.4 (52606.259762)
B
00:51:09.884
+12:35:29.24
time series
MPC: K02T76Y
21.5
trans94
Jan 16 16:55
moving@19.5 ''/hr
2002-11-28 07:07:11.4 (52606.296660)
B
00:53:25.26
11:41:29.18
time series
MPC: K02T00D
20.9
trans95
Jan 16 16:55
moving@5.2 ''/hr
2002-11-28 07:07:11.4 (52606.296660)
B
00:53:22.86
12:06:03.92
time series
MPC: K02V86B
21.4
trans99
Jan 16 16:55
moving@24.2 ''/hr
2002-11-28 11:16:59.6 (52606.470134)
z
09:21:48.102
+29:35:34.70
time series
MPC: 37369
18.7
trans144
Jan 16 16:55
moving@3.0 ''/hr
2002-12-02 05:05:54.9 (52610.212441)
R
00:50:47.98
13:30:45.25
time series
ephemeris
20.2
trans143
Jan 16 16:55
moving@10.1 ''/hr
2002-12-02 05:05:54.9 (52610.212441)
R
00:51:33.91
13:29:08.05
time series
ephemeris
19.6
trans141
Jan 16 16:55
moving@36.3 ''/hr
2002-12-02 05:05:54.9 (52610.212441)
R
00:49:53.646
+13:02:26.24
time series
ephemeris
22.0
trans140
Jan 16 16:54
moving@14.7 ''/hr
2002-12-02 05:05:54.9 (52610.212441)
R
00:49:56.888
+13:11:47.30
time series
ephemeris
21.1
trans139
Jan 16 16:54
moving@17.2 ''/hr
2002-12-02 04:48:19.3 (52610.200223)
R
00:50:06.02
13:26:26.20
time series
ephemeris
22.6
trans138
Jan 16 16:54
moving@6.2 ''/hr
2002-12-02 05:05:54.9 (52610.212441)
R
00:50:08.812
+13:23:17.19
time series
ephemeris
23.4
trans135
Jan 16 16:54
moving@30.4 ''/hr
2002-12-02 05:05:54.9 (52610.212441)
R
00:50:32.873
+13:18:43.09
time series
ephemeris
23.1
trans133
Jan 16 16:54
moving@26.8 ''/hr
2002-12-02 05:05:54.9 (52610.212441)
R
00:50:39.475
+13:17:38.85
time series
ephemeris
20.6
trans132
Jan 16 16:54
moving@13.0 ''/hr
2002-12-02 05:05:54.9 (52610.212441)
R
00:51:41.242
+13:06:52.83
time series
ephemeris
20.8
trans131
Jan 16 16:54
moving@4.5 ''/hr
2002-12-02 04:48:19.3 (52610.200223)
R
00:51:46.87
13:18:27.32
time series
ephemeris
22.1
trans128
Jan 16 16:54
moving@6.1 ''/hr
2002-12-02 06:18:05.9 (52610.262568)
z
00:52:25.16
12:57:04.75
time series
ephemeris
20.9
trans127
Jan 16 16:54
moving@4.3 ''/hr
2002-12-02 06:18:05.9 (52610.262568)
z
00:52:25.828
+13:01:09.50
time series
ephemeris
21.4
trans126
Jan 16 16:54
moving@4.1 ''/hr
2002-12-02 06:05:30.5 (52610.253825)
z
00:53:12.068
+13:30:26.75
time series
ephemeris
21.1
trans125
Jan 16 16:54
moving@6.9 ''/hr
2002-12-02 06:18:05.9 (52610.262568)
z
00:53:19.969
+13:10:51.00
time series
ephemeris
20.9
trans124
Jan 16 16:54
moving@6.4 ''/hr
2002-12-02 06:18:05.9 (52610.262568)
z
00:54:19.167
+13:11:18.66
time series
ephemeris
21.8
trans123
Jan 16 16:54
moving@16.1 ''/hr
2002-12-02 06:18:05.9 (52610.262568)
z
00:52:46.273
+13:23:18.17
time series
ephemeris
20.4
trans120
Jan 16 16:54
moving@13.4 ''/hr
2002-12-02 06:05:30.5 (52610.253825)
z
00:54:40.727
+13:18:57.58
time series
ephemeris
21.3
trans119
Jan 16 16:54
unknown
2002-11-28 01:55:14.3 (52606.080027)
B
00:51:47.14
13:14:20.64
time series
finding chart
22.7
trans109
Jan 16 16:54
unknown
2002-11-28 01:55:14.3 (52606.080027)
B
00:51:47.86
13:23:21.01
time series
finding chart
22.7
trans118
Jan 16 16:54
unknown
2002-11-28 01:55:14.3 (52606.080027)
B
00:49:30.67
13:17:13.92
time series
finding chart
23.4
trans117
Jan 16 16:54
unknown
2002-11-28 01:55:14.3 (52606.080027)
B
00:50:08.67
13:17:53.02
time series
finding chart
23.3
trans116
Jan 16 16:54
unknown
2002-11-28 01:55:14.3 (52606.080027)
B
00:50:12.83
13:26:09.79
time series
finding chart
22.9
trans115
Jan 16 16:54
unknown
2002-11-28 01:55:14.3 (52606.080027)
B
00:50:26.15
13:28:03.95
time series
finding chart
23.6
trans114
Jan 16 16:54
unknown
2002-11-28 01:55:14.3 (52606.080027)
B
00:50:38.64
12:58:54.70
time series
finding chart
22.5
trans113
Jan 16 16:54
unknown
2002-11-28 01:55:14.3 (52606.080027)
B
00:51:25.06
13:06:16.31
time series
finding chart
22.3
trans112
Jan 16 16:54
unknown
2002-11-28 01:55:14.3 (52606.080027)
B
00:51:39.98
13:24:26.99
time series
finding chart
22.7
trans110
Jan 16 16:54
unknown
2002-11-28 01:55:14.3 (52606.080027)
B
00:51:47.65
13:09:01.90
time series
finding chart
23.1
trans108
Jan 16 16:54
moving@19.3 ''/hr
2002-11-28 10:06:04.3 (52606.420883)
z
09:16:06.304
+29:32:18.76
time series
ephemeris
21.6
trans107
Jan 16 16:54
moving@11.5 ''/hr
2002-11-28 10:06:04.3 (52606.420883)
z
09:16:46.236
+29:10:34.79
time series
ephemeris
21.2
trans106
Jan 16 16:54
moving@11.8 ''/hr
2002-11-28 10:06:04.3 (52606.420883)
z
09:15:14.914
+29:13:38.65
time series
ephemeris
20.3
trans102
Jan 16 16:54
moving@12.8 ''/hr
2002-11-28 11:16:59.6 (52606.470134)
z
09:23:13.54
29:31:49.51
time series
ephemeris
21.4
trans101
Jan 16 16:54
moving@11.5 ''/hr
2002-11-28 11:16:59.6 (52606.470134)
z
09:23:36.96
29:11:21.38
time series
ephemeris
21.5
trans100
Jan 16 16:54
moving@13.8 ''/hr
2002-11-28 11:16:59.6 (52606.470134)
z
09:22:47.607
+29:06:55.35
time series
ephemeris
20.4
trans98
Jan 16 16:55
moving@16.7 ''/hr
2002-11-28 11:16:59.6 (52606.470134)
z
09:22:43.533
+29:25:15.84
time series
ephemeris
21.2
trans97
Jan 16 16:55
moving@4.6 ''/hr
2002-11-28 07:07:11.4 (52606.296660)
B
00:52:20.14
11:45:05.46
time series
ephemeris
22.9
trans96
Jan 16 16:55
moving@11.2 ''/hr
2002-11-28 07:07:11.4 (52606.296660)
B
00:52:36.47
12:00:01.67
time series
ephemeris
22.1
trans93
Jan 16 16:55
moving@10.1 ''/hr
2002-11-28 07:07:11.4 (52606.296660)
B
00:53:56.33
11:59:47.50
time series
ephemeris
22.5
trans92
Jan 16 16:55
moving@11.4 ''/hr
2002-11-28 06:14:03.4 (52606.259762)
B
00:50:50.884
+12:28:15.51
time series
ephemeris
23.3
trans91
Jan 16 16:55
moving@10.0 ''/hr
2002-11-28 05:48:52.3 (52606.242272)
B
00:49:40.37
12:31:47.04
time series
ephemeris
22.8
trans90
Jan 16 16:55
moving@16.5 ''/hr
2002-11-28 06:14:03.4 (52606.259762)
B
00:49:46.589
+12:43:38.31
time series
ephemeris
22.2
trans89
Jan 16 16:55
moving@5.0 ''/hr
2002-11-28 06:14:03.4 (52606.259762)
B
00:49:58.317
+12:26:24.80
time series
ephemeris
22.6
trans88
Jan 16 16:55
moving@5.8 ''/hr
2002-11-28 06:14:03.4 (52606.259762)
B
00:50:55.544
+12:20:12.34
time series
ephemeris
21.4
trans86
Jan 16 16:55
moving@15.0 ''/hr
2002-11-28 06:14:03.4 (52606.259762)
B
00:51:19.965
+12:23:29.57
time series
ephemeris
21.8
trans85
Jan 16 16:55
moving@7.6 ''/hr
2002-11-28 06:14:03.4 (52606.259762)
B
00:51:44.415
+12:26:51.54
time series
ephemeris
22.1
trans84
Jan 16 16:55
unknown
2002-11-28 03:10:25.1 (52606.132235)
B
00:55:29.93
11:48:08.00
time series
finding chart
23.5
trans83
Jan 16 16:55
unknown
2002-11-28 03:10:25.1 (52606.132235)
B
00:56:37.64
11:57:10.04
time series
finding chart
23.1
trans82
Jan 16 16:55
unknown
2002-11-28 03:10:25.1 (52606.132235)
B
00:56:46.66
11:56:01.62
time series
finding chart
23.3
trans81
Jan 16 16:55
unknown
2002-11-28 03:10:25.1 (52606.132235)
B
00:56:56.02
11:58:05.60
time series
finding chart
21.9
trans80
Jan 16 16:55
moving@15.4 ''/hr
2002-11-28 03:48:10.7 (52606.158457)
B
00:56:18.936
+11:42:04.58
time series
ephemeris
22.8
trans79
Jan 16 16:55
moving@6.7 ''/hr
2002-11-28 03:48:10.7 (52606.158457)
B
00:55:13.561
+12:06:46.68
time series
ephemeris
22.2
trans78
Jan 16 16:55
moving@13.3 ''/hr
2002-11-28 03:48:10.7 (52606.158457)
B
00:55:21.301
+12:08:32.39
time series
ephemeris
21.2
trans76
Jan 16 16:55
moving@12.9 ''/hr
2002-11-28 03:48:10.7 (52606.158457)
B
00:55:33.212
+11:53:22.71
time series
ephemeris
21.4
trans75
Jan 16 16:55
moving@3.7 ''/hr
2002-11-28 03:48:10.7 (52606.158457)
B
00:55:44.680
+12:08:17.90
time series
ephemeris
22.3
trans74
Jan 16 16:55
moving@7.4 ''/hr
2002-11-28 03:48:10.7 (52606.158457)
B
00:55:54.150
+11:59:00.76
time series
ephemeris
22.3
trans73
Jan 16 16:55
moving@13.1 ''/hr
2002-11-28 03:48:10.7 (52606.158457)
B
00:55:54.315
+11:46:51.40
time series
ephemeris
22.2
trans72
Jan 16 16:55
moving@12.0 ''/hr
2002-11-28 03:48:10.7 (52606.158457)
B
00:55:56.994
+11:42:58.31
time series
ephemeris
22.4
trans71
Jan 16 16:55
moving@22.7 ''/hr
2002-11-28 03:48:10.7 (52606.158457)
B
00:56:09.486
+11:38:10.99
time series
ephemeris
21.6
trans70
Jan 16 16:55
moving@11.5 ''/hr
2002-11-28 03:48:10.7 (52606.158457)
B
00:57:08.674
+11:49:40.32
time series
ephemeris
23.3
trans69
Jan 16 16:55
moving@13.4 ''/hr
2002-11-28 03:35:35.3 (52606.149714)
B
00:57:11.862
+11:50:12.14
time series
ephemeris
22.1
trans68
Jan 16 16:55
unknown
2002-11-28 01:55:14.3 (52606.080027)
B
00:49:54.07
13:28:05.90
time series
finding chart
22.5
trans67
Jan 16 16:55
unknown
2002-11-28 01:55:14.3 (52606.080027)
B
00:50:08.88
13:07:35.89
time series
finding chart
22.6
trans66
Jan 16 16:55
unknown
2002-11-28 01:55:14.3 (52606.080027)
B
00:50:17.16
13:16:45.30
time series
finding chart
23.1
trans65
Jan 16 16:55
unknown
2002-11-28 01:55:14.3 (52606.080027)
B
00:50:24.75
13:24:02.61
time series
finding chart
23.5
trans57
Jan 16 16:55
moving@12.1 ''/hr
2002-11-28 02:33:07.6 (52606.106338)
B
00:49:38.280
+13:05:21.31
time series
ephemeris
22.8
trans56
Jan 16 16:55
moving@0.0 ''/hr
2002-11-28 02:20:32.3 (52606.097596)
B
00:50:28.408
+13:31:09.15
time series
ephemeris
22.3
trans55
Jan 16 16:55
moving@12.7 ''/hr
2002-11-28 02:33:07.6 (52606.106338)
B
00:50:37.805
+13:07:09.20
time series
ephemeris
23.2
trans54
Jan 16 16:55
moving@6.2 ''/hr
2002-11-28 02:33:07.6 (52606.106338)
B
00:51:32.292
+13:28:08.43
time series
ephemeris
22.8
trans53
Jan 16 16:55
moving@12.0 ''/hr
2002-11-28 02:33:07.6 (52606.106338)
B
00:50:29.313
+13:22:23.85
time series
ephemeris
21.9
trans52
Jan 16 16:55
moving@9.2 ''/hr
2002-11-28 02:33:07.6 (52606.106338)
B
00:50:31.474
+13:03:17.38
time series
ephemeris
22.1
trans51
Jan 16 16:55
moving@15.7 ''/hr
2002-11-28 02:33:07.6 (52606.106338)
B
00:50:43.102
+13:20:46.46
time series
ephemeris
21.6



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Deep Lens Survey Transient Page
Last updated : Thu Jan 16 17:00:02 EST 2003