RECON: TNO occultation with 01QC298

Event between 01QC298 and star GA1060:18063587 with event index number of 1180330

Geocentric closest approach at 2022/11/04 09:25:59 UTC

J2000 position of star is 23:46:27.5 +16:48:39
Equinox of date position of star is 23:47:35.3 +16:56:03
Stellar brightness G=11.9, use SENSEUP=16 with the MallinCam and and exposure time of 250 milli-seconds with the QHY174 camera.
Star is 24 degrees from the moon. Moon is 82% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 41.2 AU from the Sun and 40.4 AU from the Earth.
The TNO is moving 19.3 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 190 seconds.
The 1-sigma cross-track error in the shadow position is 3612 km.
The sky-plane scale is 29322.8 km/arcsec.

The TNO has an absolute magnitude Hv=6.6
Diameter=287.1 km assuming a 5% albedo -- 14.9 sec chord
Diameter=117.2 km assuming a 30% albedo -- 6.1 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 01QC298, (2022/11/04 09:26UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:12.7 +45:21:46  1.3 47.84  65
Algenib        00:14:24.9 +15:18:38  2.8  6.64  24
PPM 142773     23:43:53.6 +16:27:45  6.3  1.01  23
PPM 142857     23:48:41.8 +17:03:52  7.9  0.29  24
PPM 142836     23:47:36.7 +16:50:47  9.9  0.09  24
01QC298        23:47:37.2 +16:56:16 11.9        24
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 4.7 sigma about the mid-time.
The median site spacing is 30.4 km RECON observability=0.9 and success probability=3.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:20:55 -42.4 Dark Down 18.5 273.8 Really Low 09:05:55 - 09:35:55 10058
Kamloops 09:21:17 -49.8 Dark Up 27.5 263.1 Low 09:06:17 - 09:36:17 9832
Kelowna 09:21:14 -50.1 Dark Up 27.0 264.2 Low 09:06:14 - 09:36:14 9744
Peachland 09:21:14 -50.3 Dark Up 27.2 264.0 Low 09:06:14 - 09:36:14 9731
Summerland 09:21:13 -50.3 Dark Up 27.2 264.2 Low 09:06:13 - 09:36:13 9715
Penticton 09:21:10 -50.3 Dark Up 27.1 264.3 Low 09:06:10 - 09:36:10 9708
Oliver 09:21:13 -50.6 Dark Up 27.1 264.5 Low 09:06:13 - 09:36:13 9670
Anarchist Mountain Observatory 09:21:13 -50.7 Dark Up 27.0 264.7 Low 09:06:13 - 09:36:13 9651
Tonasket 09:21:13 -50.9 Dark Up 27.1 264.8 Low 09:06:13 - 09:36:13 9618
Victoria 09:21:19 -52.7 Dark Up 29.7 261.8 Low 09:06:19 - 09:36:19 9601
Okanogan 09:21:13 -51.3 Dark Up 27.2 264.9 Low 09:06:13 - 09:36:13 9581
Brewster 09:21:13 -51.5 Dark Up 27.4 264.9 Low 09:06:13 - 09:36:13 9551
Manson/Chelan 09:21:13 -51.9 Dark Up 27.6 264.7 Low 09:06:13 - 09:36:13 9528
Wenatchee 09:21:13 -52.3 Dark Up 27.8 264.8 Low 09:06:13 - 09:36:13 9476
Ellensburg 09:21:10 -52.7 Dark Up 28.0 264.9 Low 09:06:10 - 09:36:10 9431
Yakima 09:21:12 -53.0 Dark Up 28.0 265.1 Low 09:06:12 - 09:36:12 9386
Toppenish/White Swan 09:21:12 -53.1 Dark Up 27.9 265.3 Low 09:06:12 - 09:36:12 9362
PNWRO 09:21:09 -52.7 Dark Up 26.9 266.6 Low 09:06:09 - 09:36:09 9322
Goldendale 09:21:12 -53.7 Dark Up 28.3 265.3 Low 09:06:12 - 09:36:12 9302
The Dalles 09:21:13 -54.1 Dark Up 28.5 265.1 Low 09:06:13 - 09:36:13 9277
Maupin 09:21:14 -54.3 Dark Up 28.5 265.4 Low 09:06:14 - 09:36:14 9231
Sisters 09:21:13 -55.2 Dark Up 28.9 265.6 Low 09:06:13 - 09:36:13 9134
Bend 09:21:13 -55.3 Dark Up 28.8 265.9 Low 09:06:13 - 09:36:13 9108
Oregon Observatory 09:21:14 -55.5 Dark Up 28.9 265.9 Low 09:06:14 - 09:36:14 9089
North Lake 09:21:11 -55.7 Dark Up 28.5 266.6 Low 09:06:11 - 09:36:11 9018
Chiloquin 09:21:14 -56.7 Dark Up 29.3 266.3 Low 09:06:14 - 09:36:14 8944
Klamath Falls 09:21:12 -56.9 Dark Up 29.2 266.6 Low 09:06:12 - 09:36:12 8906
Lakeview 09:21:10 -56.2 Dark Up 28.2 267.6 Low 09:06:10 - 09:36:10 8900
Cedarville 09:21:09 -56.5 Dark Up 28.1 268.0 Low 09:06:09 - 09:36:09 8827
Dunrhomin 09:20:41 -47.9 Dark Down 16.8 278.1 Really Low 09:05:41 - 09:35:41 8787
Fall River/Burney 09:21:12 -57.5 Dark Up 29.0 267.5 Low 09:06:12 - 09:36:12 8774
CU-SBO 09:20:43 -48.1 Dark Up 16.8 278.1 Really Low 09:05:43 - 09:35:43 8758
Susanville 09:21:10 -57.6 Dark Up 28.5 268.3 Low 09:06:10 - 09:36:10 8704
Greenville 09:21:11 -57.9 Dark Up 28.7 268.3 Low 09:06:11 - 09:36:11 8674
Gimple 09:21:09 -57.9 Dark Up 28.6 268.3 Low 09:06:09 - 09:36:09 8673
Quincy 09:21:11 -58.1 Dark Up 28.7 268.4 Low 09:06:11 - 09:36:11 8651
Portola 09:21:09 -57.9 Dark Up 28.3 268.8 Low 09:06:09 - 09:36:09 8637
Reno 09:21:08 -57.7 Dark Up 27.8 269.3 Low 09:06:08 - 09:36:08 8607
Carson City 09:21:07 -57.9 Dark Up 27.8 269.5 Low 09:06:07 - 09:36:07 8568
Yerington 09:21:07 -57.7 Dark Up 27.3 270.0 Low 09:06:07 - 09:36:07 8546
Gardnerville 09:21:07 -58.1 Dark Up 27.8 269.7 Low 09:06:07 - 09:36:07 8540
Hawthorne 09:21:06 -57.7 Dark Up 26.9 270.6 Low 09:06:06 - 09:36:06 8495
Tonopah 09:21:02 -57.1 Dark Up 25.8 271.7 Low 09:06:02 - 09:36:02 8447
Lee Vining 09:21:07 -58.3 Dark Up 27.3 270.6 Low 09:06:07 - 09:36:07 8432
Bishop 09:21:05 -58.2 Dark Up 26.7 271.3 Low 09:06:05 - 09:36:05 8367
Beatty 09:21:01 -57.4 Dark Up 25.4 272.5 Low 09:06:01 - 09:36:01 8319
Indian Springs 09:21:00 -56.9 Dark Up 24.5 273.3 Low 09:06:00 - 09:36:00 8287
Henderson 09:20:58 -56.7 Dark Up 24.0 273.9 Low 09:05:58 - 09:35:58 8231
Patrick 09:20:56 -56.2 Dark Up 23.0 274.8 Low 09:05:56 - 09:35:56 8168
Kingman/Dolan Springs 09:20:56 -56.5 Dark Up 23.1 274.8 Low 09:05:56 - 09:35:56 8142
Laughlin/Bullhead City 09:20:55 -56.8 Dark Up 23.6 274.5 Low 09:05:55 - 09:35:55 8137
Mohave Valley 09:20:55 -57.0 Dark Up 23.5 274.6 Low 09:05:55 - 09:35:55 8107
Lake Havasu City 09:20:56 -57.0 Dark Up 23.3 274.9 Low 09:05:56 - 09:35:56 8064
Parker 09:20:54 -57.1 Dark Up 23.3 275.1 Low 09:05:54 - 09:35:54 8025
Wildwood 09:21:05 -60.2 Dark Up 26.8 272.8 Low 09:06:05 - 09:36:05 8004
George/Scottsdale 09:20:53 -55.5 Dark Up 21.2 276.5 Low 09:05:53 - 09:35:53 7995
Idyllwild 09:21:00 -59.1 Dark Up 25.2 274.0 Low 09:06:00 - 09:36:00 7969
Calipatria 09:21:00 -58.5 Dark Up 24.2 274.9 Low 09:06:00 - 09:36:00 7906
Yuma 09:20:58 -58.0 Dark Up 23.4 275.6 Low 09:05:58 - 09:35:58 7863

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 01QC298, (2022/11/04 09:26UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 47.84  65
Algenib        00:13:14.2 +15:11:01  2.8  6.64  24
PPM 142773     23:42:44.0 +16:20:09  6.3  1.01  23
PPM 142857     23:47:32.1 +16:56:15  7.9  0.29  24
PPM 142836     23:46:27.0 +16:43:09  9.9  0.09  24
01QC298        23:46:27.5 +16:48:39 11.9        24
Positions are for J2000

Event circumstances last updated at 2022/03/13 02:17:16 UT

Marc W. Buie, Southwest Research Institute

RECON