RECON: TNO occultation with 02GV32

Event between 02GV32 and star GA0640:20097067 with event index number of 1070274

Geocentric closest approach at 2021/07/16 08:23:57 UTC

J2000 position of star is 17:46:58.1 -24:14:51
Equinox of date position of star is 17:48:16.7 -24:15:14
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 77 degrees from the moon. Moon is 38% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 32.1 AU from the Sun and 31.2 AU from the Earth.
The TNO is moving 20.4 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 370 seconds.
The 1-sigma cross-track error in the shadow position is 1618 km.
The sky-plane scale is 22627.7 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=204.2 km assuming a 5% albedo -- 10.0 sec chord
Diameter=83.4 km assuming a 30% albedo -- 4.1 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 02GV32, (2021/07/16 08:24UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:43.9 -26:28:41  0.9 17.64  60
35Eta Oph      17:11:36.9 -15:45:00  2.6 12.10  67
PPM 267309     17:49:03.7 -22:29:02  6.1  1.78  77
PPM 267267     17:47:44.4 -24:08:53  8.4  0.16  77
02GV32         17:48:17.3 -24:15:14 16.9        77
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 2.4 sigma about the mid-time.
The median site spacing is 22.9 km RECON observability=0.2 and success probability=0.0%
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 08:22:09 -18.3 Dark Down 9.7 211.0 Really Low 08:07:09 - 08:37:09 9581
Victoria 08:22:17 -20.2 Dark Down 12.5 207.7 Really Low 08:07:17 - 08:37:17 9580
Peachland 08:22:08 -18.8 Dark Down 10.3 210.7 Really Low 08:07:08 - 08:37:08 9570
Kelowna 08:22:09 -18.7 Dark Down 10.1 210.9 Really Low 08:07:09 - 08:37:09 9569
Summerland 08:22:08 -19.0 Dark Down 10.4 210.8 Really Low 08:07:08 - 08:37:08 9563
Penticton 08:22:07 -19.1 Dark Down 10.4 210.9 Really Low 08:07:07 - 08:37:07 9559
Oliver 08:22:07 -19.4 Dark Down 10.7 210.9 Really Low 08:07:07 - 08:37:07 9546
Anarchist Mountain Observatory 08:22:06 -19.6 Dark Down 10.8 211.1 Really Low 08:07:06 - 08:37:06 9537
Tonasket 08:22:05 -19.9 Dark Down 11.1 211.1 Really Low 08:07:05 - 08:37:05 9526
Okanogan 08:22:05 -20.2 Dark Down 11.4 211.0 Really Low 08:07:05 - 08:37:05 9516
Brewster 08:22:05 -20.5 Dark Down 11.7 210.8 Really Low 08:07:05 - 08:37:05 9508
Manson/Chelan 08:22:05 -20.7 Dark Down 12.0 210.5 Really Low 08:07:05 - 08:37:05 9506
Wenatchee 08:22:05 -21.2 Dark Down 12.5 210.4 Really Low 08:07:05 - 08:37:05 9490
Ellensburg 08:22:05 -21.6 Dark Down 12.9 210.3 Really Low 08:07:05 - 08:37:05 9477
Yakima 08:22:04 -22.0 Dark Down 13.3 210.3 Really Low 08:07:04 - 08:37:04 9461
Toppenish/White Swan 08:22:04 -22.2 Dark Down 13.4 210.5 Really Low 08:07:04 - 08:37:04 9449
Goldendale 08:22:03 -22.8 Dark Down 14.0 210.2 Really Low 08:07:03 - 08:37:03 9433
The Dalles 08:22:05 -23.1 Dark Down 14.3 209.9 Really Low 08:07:05 - 08:37:05 9429
Pasco 08:21:59 -22.3 Dark Down 13.1 211.6 Really Low 08:06:59 - 08:36:59 9422
Maupin 08:22:03 -23.5 Dark Down 14.7 210.0 Really Low 08:07:03 - 08:37:03 9409
PNWRO 08:21:58 -22.5 Dark Down 13.2 211.8 Really Low 08:06:58 - 08:36:58 9408
Sisters 08:22:03 -24.4 Dark Down 15.6 209.7 Really Low 08:07:03 - 08:37:03 9379
Redmond 08:22:01 -24.4 Dark Down 15.5 210.1 Really Low 08:07:01 - 08:37:01 9371
Bend 08:22:00 -24.6 Dark Down 15.7 210.0 Really Low 08:07:00 - 08:37:00 9364
Oregon Observatory 08:22:02 -24.8 Dark Down 15.9 209.9 Really Low 08:07:02 - 08:37:02 9359
La Pine/Gilchrist 08:22:01 -25.0 Dark Down 16.1 209.9 Really Low 08:07:01 - 08:37:01 9350
North Lake 08:21:58 -25.4 Dark Down 16.3 210.5 Really Low 08:06:58 - 08:36:58 9320
Chiloquin 08:22:00 -26.1 Dark Down 17.2 209.7 Really Low 08:07:00 - 08:37:00 9304
Paisley 08:21:57 -25.9 Dark Down 16.6 210.8 Really Low 08:06:57 - 08:36:57 9287
Klamath Falls 08:22:00 -26.4 Dark Down 17.5 209.8 Really Low 08:07:00 - 08:37:00 9286
Lakeview 08:21:55 -26.4 Dark Down 17.0 211.1 Really Low 08:06:55 - 08:36:55 9259
Cedarville 08:21:53 -27.1 Dark Down 17.5 211.3 Really Low 08:06:53 - 08:36:53 9224
Fall River/Burney 08:21:56 -27.6 Dark Down 18.4 210.4 Really Low 08:06:56 - 08:36:56 9221
Susanville 08:21:52 -28.2 Dark Down 18.6 211.1 Really Low 08:06:52 - 08:36:52 9176
Greenville 08:21:53 -28.5 Dark Down 19.0 210.9 Really Low 08:06:53 - 08:36:53 9166
Gimple 08:21:53 -28.5 Dark Down 18.9 211.0 Really Low 08:06:53 - 08:36:53 9165
Quincy 08:21:52 -28.7 Dark Down 19.2 210.9 Really Low 08:06:52 - 08:36:52 9156
Portola 08:21:51 -28.8 Dark Down 19.1 211.4 Really Low 08:06:51 - 08:36:51 9141
Reno 08:21:48 -29.0 Dark Down 19.0 212.0 Really Low 08:06:48 - 08:36:48 9115
Carson City 08:21:47 -29.4 Dark Down 19.3 212.0 Really Low 08:06:47 - 08:36:47 9095
Gardnerville 08:21:47 -29.6 Dark Down 19.5 212.1 Really Low 08:06:47 - 08:36:47 9081
Yerington 08:21:45 -29.5 Dark Down 19.2 212.6 Really Low 08:06:45 - 08:36:45 9072
Hawthorne 08:21:42 -30.0 Dark Down 19.4 213.2 Really Low 08:06:42 - 08:36:42 9036
Lee Vining 08:21:42 -30.6 Dark Down 20.1 212.8 Low 08:06:42 - 08:36:42 9015
Tonopah 08:21:36 -30.3 Dark Down 19.2 214.4 Really Low 08:06:36 - 08:36:36 8983
Bishop 08:21:39 -31.1 Dark Down 20.3 213.6 Low 08:06:39 - 08:36:39 8966
Beatty 08:21:32 -31.4 Dark Down 19.9 215.0 Really Low 08:06:32 - 08:36:32 8906
CPSLO 08:21:43 -33.3 Dark Down 23.0 212.1 Low 08:06:43 - 08:36:43 8889
Indian Springs 08:21:28 -31.6 Dark Down 19.7 216.0 Really Low 08:06:28 - 08:36:28 8864
Dunrhomin 08:21:03 -26.1 Dark Down 11.7 223.6 Really Low 08:06:03 - 08:36:03 8830
Henderson 08:21:24 -32.1 Dark Down 19.8 216.7 Really Low 08:06:24 - 08:36:24 8816
Wildwood 08:21:34 -34.4 Dark Down 23.1 214.1 Low 08:06:34 - 08:36:34 8774
Laughlin/Bullhead City 08:21:22 -32.9 Dark Down 20.3 217.2 Low 08:06:22 - 08:36:22 8754
Patrick 08:21:19 -32.5 Dark Down 19.8 217.7 Really Low 08:06:19 - 08:36:19 8753
Kingman/Dolan Springs 08:21:20 -32.8 Dark Down 20.1 217.6 Low 08:06:20 - 08:36:20 8744
Mohave Valley 08:21:21 -33.1 Dark Down 20.5 217.2 Low 08:06:21 - 08:36:21 8737
Idyllwild 08:21:26 -34.5 Dark Down 22.5 215.8 Low 08:06:26 - 08:36:26 8712
Lake Havasu City 08:21:19 -33.5 Dark Down 20.7 217.5 Low 08:06:19 - 08:36:19 8706
Parker 08:21:18 -33.8 Dark Down 21.0 217.6 Low 08:06:18 - 08:36:18 8683
Blythe 08:21:20 -34.4 Dark Down 21.6 217.5 Low 08:06:20 - 08:36:20 8657
Calipatria 08:21:21 -35.0 Dark Down 22.4 216.9 Low 08:06:21 - 08:36:21 8646
George/Scottsdale 08:21:10 -33.8 Dark Down 20.1 219.7 Low 08:06:10 - 08:36:10 8599
Yuma 08:21:17 -35.3 Dark Down 22.3 217.7 Low 08:06:17 - 08:36:17 8598

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 02GV32, (2021/07/16 08:24UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 17.64  60
35Eta Oph      17:10:22.7 -15:43:29  2.6 12.10  67
PPM 267309     17:47:45.6 -22:28:40  6.1  1.78  77
PPM 267267     17:46:25.3 -24:08:29  8.4  0.16  77
02GV32         17:46:58.1 -24:14:51 16.9        77
Positions are for J2000

Event circumstances last updated at 2021/05/17 01:05:20 UT

Marc W. Buie, Southwest Research Institute

RECON