RECON: TNO occultation with 03UN284

Event between 03UN284 and star GA1140:00979899 with event index number of 1073151

Geocentric closest approach at 2021/11/26 11:51:12 UTC

J2000 position of star is 05:06:32.5 +24:57:54
Equinox of date position of star is 05:07:45.7 +24:59:25
Stellar brightness G=15.2, use SENSEUP=128
Star is 65 degrees from the moon. Moon is 60% illuminated.
TNO apparent brightness V=23.7

[RECON map]
TNO is 42.5 AU from the Sun and 41.6 AU from the Earth.
The TNO is moving 24.8 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 435 seconds.
The 1-sigma cross-track error in the shadow position is 2116 km.
The sky-plane scale is 30140.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.4
Diameter=197.7 km assuming a 5% albedo -- 8.0 sec chord
Diameter=80.7 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 03UN284, (2021/11/26 11:51UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:10.8 +16:33:06  0.8 11.07  73
Alnath         05:27:40.7 +28:37:26  1.6  5.72  60
103 Tau        05:09:26.9 +24:17:31  5.3  0.79  64
PPM 094048     05:06:31.9 +23:49:39  8.3  1.21  65
PPM 094077     05:09:01.3 +24:51:10  9.6  0.29  64
PPM 094062     05:07:31.1 +25:07:04 10.2  0.15  65
03UN284        05:07:53.2 +24:59:34 15.2        64
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 2.1 sigma about the mid-time.
The median site spacing is 24.9 km RECON observability=1.0 and success probability=21.6%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Clarence Fulton	11:49:03	-34.3	Dark	Up	46.1	252.7	Up	11:34:03 - 12:04:03	664
Kelowna	11:49:03	-34.5	Dark	Up	46.3	253.0	Up	11:34:03 - 12:04:03	625
Summerland	11:49:03	-34.7	Dark	Up	46.5	253.0	Up	11:34:03 - 12:04:03	596
Penticton	11:49:02	-34.6	Dark	Up	46.4	253.2	Up	11:34:02 - 12:04:02	592
Oliver	11:49:02	-34.6	Dark	Up	46.5	253.6	Up	11:34:02 - 12:04:02	558
Anarchist Mountain Observatory	11:49:01	-34.5	Dark	Up	46.5	253.9	Up	11:34:01 - 12:04:01	546
Tonasket	11:49:00	-34.6	Dark	Up	46.6	254.2	Up	11:34:00 - 12:04:00	515
Okanogan	11:49:00	-34.8	Dark	Up	46.8	254.4	Up	11:34:00 - 12:04:00	480
Brewster	11:49:00	-34.9	Dark	Up	47.0	254.4	Up	11:34:00 - 12:04:00	451
Victoria	11:49:09	-37.2	Dark	Up	49.1	250.5	Up	11:34:09 - 12:04:09	427
Manson/Chelan	11:49:00	-35.2	Dark	Up	47.3	254.3	Up	11:34:00 - 12:04:00	424
Entiat	11:49:00	-35.3	Dark	Up	47.4	254.5	Up	11:34:00 - 12:04:00	401
Wenatchee	11:49:00	-35.4	Dark	Up	47.5	254.7	Up	11:34:00 - 12:04:00	375
Ellensburg	11:48:59	-35.6	Dark	Up	47.8	254.9	Up	11:33:59 - 12:03:59	331
Yakima	11:48:58	-35.6	Dark	Up	47.9	255.3	Up	11:33:58 - 12:03:58	291
Pasco	11:48:55	-34.7	Dark	Up	47.0	257.0	Up	11:33:55 - 12:03:55	286
Toppenish/White Swan	11:48:58	-35.6	Dark	Up	47.8	255.7	Up	11:33:58 - 12:03:58	273
PNWRO	11:48:54	-34.6	Dark	Up	46.9	257.4	Up	11:33:54 - 12:03:54	266
Goldendale	11:48:58	-35.9	Dark	Up	48.3	255.9	Up	11:33:58 - 12:03:58	211
The Dalles	11:48:58	-36.2	Dark	Up	48.6	255.8	Up	11:33:58 - 12:03:58	182
Maupin	11:48:57	-36.2	Dark	Up	48.6	256.4	Up	11:33:57 - 12:03:57	143
Redmond	11:48:55	-36.3	Dark	Up	48.9	257.3	Up	11:33:55 - 12:03:55	52
Sisters	11:48:56	-36.6	Dark	Up	49.1	256.9	Up	11:33:56 - 12:03:56	46
Bend	11:48:55	-36.4	Dark	Up	49.0	257.4	Up	11:33:55 - 12:03:55	28
Niwot	11:48:13	-24.5	Dark	Up	37.5	272.8	Up	11:33:13 - 12:03:13	25
SwRI	11:48:13	-24.6	Dark	Up	37.6	272.8	Up	11:33:13 - 12:03:13	12
Oregon Observatory	11:48:55	-36.6	Dark	Up	49.1	257.5	Up	11:33:55 - 12:03:55	8
La Pine/Gilchrist	11:48:55	-36.6	Dark	Up	49.2	257.7	Up	11:33:55 - 12:03:55	-14
North Lake	11:48:53	-36.2	Dark	Up	48.9	258.7	Up	11:33:53 - 12:03:53	-45
Paisley	11:48:51	-36.0	Dark	Up	48.8	259.6	Up	11:33:51 - 12:03:51	-93
Lakeview	11:48:49	-35.9	Dark	Up	48.7	260.3	Up	11:33:49 - 12:03:49	-140
Klamath Falls	11:48:53	-37.0	Dark	Up	49.7	259.1	Up	11:33:53 - 12:03:53	-165
Cedarville	11:48:48	-35.8	Dark	Up	48.7	261.2	Up	11:33:48 - 12:03:48	-203
Fall River/Burney	11:48:50	-36.8	Dark	Up	49.7	260.7	Up	11:33:50 - 12:03:50	-277
Susanville	11:48:47	-36.2	Dark	Up	49.2	262.1	Up	11:33:47 - 12:03:47	-326
Gimple	11:48:47	-36.4	Dark	Up	49.4	262.2	Up	11:33:47 - 12:03:47	-358
Greenville	11:48:47	-36.5	Dark	Up	49.5	262.1	Up	11:33:47 - 12:03:47	-360
Quincy	11:48:47	-36.5	Dark	Up	49.5	262.4	Up	11:33:47 - 12:03:47	-380
Portola	11:48:45	-36.1	Dark	Up	49.2	262.9	Up	11:33:45 - 12:03:45	-383
Reno	11:48:43	-35.6	Dark	Up	48.7	263.7	Up	11:33:43 - 12:03:43	-396
Carson City	11:48:43	-35.6	Dark	Up	48.7	264.1	Up	11:33:43 - 12:03:43	-433
Yerington	11:48:41	-35.1	Dark	Up	48.2	264.8	Up	11:33:41 - 12:03:41	-439
Gardnerville	11:48:42	-35.6	Dark	Up	48.7	264.4	Up	11:33:42 - 12:03:42	-456
Hawthorne	11:48:39	-34.7	Dark	Up	47.9	265.6	Up	11:33:39 - 12:03:39	-474
Tonopah	11:48:35	-33.6	Dark	Up	46.8	267.1	Up	11:33:35 - 12:03:35	-489
Lee Vining	11:48:39	-35.1	Dark	Up	48.3	265.9	Up	11:33:39 - 12:03:39	-543
Bishop	11:48:36	-34.5	Dark	Up	47.8	267.1	Up	11:33:36 - 12:03:36	-588
Beatty	11:48:31	-33.2	Dark	Up	46.5	268.6	Up	11:33:31 - 12:03:31	-597
Indian Springs	11:48:28	-32.4	Dark	Up	45.7	269.6	Up	11:33:28 - 12:03:28	-605
Henderson	11:48:26	-31.8	Dark	Up	45.1	270.5	Up	11:33:26 - 12:03:26	-642
Patrick	11:48:22	-30.8	Dark	Up	44.2	271.8	Up	11:33:22 - 12:03:22	-678
DCO	11:48:20	-30.2	Dark	Up	43.6	272.5	Up	11:33:20 - 12:03:20	-691
Searchlight/Boulder City	11:48:25	-31.7	Dark	Up	45.1	271.1	Up	11:33:25 - 12:03:25	-699
Kingman/Dolan Springs	11:48:22	-31.0	Dark	Up	44.3	271.9	Up	11:33:22 - 12:03:22	-705
Laughlin/Bullhead City	11:48:23	-31.4	Dark	Up	44.8	271.6	Up	11:33:23 - 12:03:23	-721
Mohave Valley	11:48:23	-31.4	Dark	Up	44.8	271.9	Up	11:33:23 - 12:03:23	-749
Lake Havasu City	11:48:22	-31.1	Dark	Up	44.5	272.4	Up	11:33:22 - 12:03:22	-784
George/Scottsdale	11:48:15	-29.0	Dark	Up	42.5	274.4	Up	11:33:15 - 12:03:15	-798
Parker	11:48:21	-31.1	Dark	Up	44.5	272.8	Up	11:33:21 - 12:03:21	-819
CPSLO	11:48:39	-36.3	Dark	Up	49.7	268.0	Up	11:33:39 - 12:03:39	-853
Blythe	11:48:21	-31.3	Dark	Up	44.7	273.1	Up	11:33:21 - 12:03:21	-881
Idyllwild	11:48:26	-33.0	Dark	Up	46.5	271.9	Up	11:33:26 - 12:03:26	-923
Wildwood	11:48:32	-34.6	Dark	Up	48.0	270.5	Up	11:33:32 - 12:03:32	-932
Calipatria	11:48:22	-32.0	Dark	Up	45.5	273.2	Up	11:33:22 - 12:03:22	-957
Yuma	11:48:20	-31.2	Dark	Up	44.7	274.0	Up	11:33:20 - 12:03:20	-978

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 03UN284, (2021/11/26 11:51UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 11.07  73
Alnath         05:26:17.5 +28:36:23  1.6  5.72  60
103 Tau        05:08:06.6 +24:15:54  5.3  0.79  64
PPM 094048     05:05:12.0 +23:47:56  8.3  1.21  65
PPM 094077     05:07:40.7 +24:49:32  9.6  0.29  64
PPM 094062     05:06:10.4 +25:05:23 10.2  0.15  65
03UN284        05:06:32.5 +24:57:54 15.2        64
Positions are for J2000

Event circumstances last updated at 2019/11/13 21:19:31 UT

RECON