RECON: TNO occultation with 59358

Event between (59358) 99CL158 and star GA1000:03511298 with event index number of 2249275

Geocentric closest approach at 2022/12/07 13:41:14 UTC

J2000 position of star is 11:22:08.1 +11:50:15
Equinox of date position of star is 11:23:19.1 +11:42:45
Stellar brightness G=16.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 98 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 37.9 AU from the Sun and 37.9 AU from the Earth.
The TNO is moving 7.0 km/sec on the sky relative to the star, or, 0.9 arcsec/hr.
The 1-sigma error in the time of the event is 302 seconds.
The 1-sigma cross-track error in the shadow position is 1885 km.
The sky-plane scale is 27515.3 km/arcsec.

The TNO has an absolute magnitude Hv=6.9
Diameter=251.2 km assuming a 5% albedo -- 35.9 sec chord
Diameter=102.6 km assuming a 30% albedo -- 14.7 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 59358, (2022/12/07 13:41UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:35.5 +11:51:15  1.3 18.04  81
Denebola       11:50:13.7 +14:26:38  2.1  7.10 102
PPM 128238     11:26:10.2 +11:18:14  5.8  0.81  98
PPM 128145     11:19:32.7 +11:51:31  6.8  0.94  97
PPM 128205     11:23:56.3 +11:27:27 10.0  0.29  98
59358          11:23:19.6 +11:42:41 16.2        98
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 3.0 sigma about the mid-time.
The median site spacing is 23.7 km RECON observability=0.6 and success probability=12.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 13:42:24 -18.9 Dark Up 50.5 166.1 Up 13:27:24 - 13:57:24 -1190
Kelowna 13:42:24 -18.2 Dark Up 51.4 167.3 Up 13:27:24 - 13:57:24 -1272
Peachland 13:42:24 -18.4 Dark Up 51.5 166.8 Up 13:27:24 - 13:57:24 -1276
Summerland 13:42:24 -18.3 Dark Up 51.6 166.9 Up 13:27:24 - 13:57:24 -1290
Victoria 13:41:26 -20.6 Dark Up 51.9 160.3 Up 13:26:26 - 13:56:26 -1290
Penticton 13:42:24 -18.2 Dark Up 51.7 167.0 Up 13:27:24 - 13:57:24 -1297
Oliver 13:42:24 -18.1 Dark Up 52.0 166.9 Up 13:27:24 - 13:57:24 -1327
Anarchist Mountain Observatory 13:42:24 -17.9 AT Up 52.2 167.2 Up 13:27:24 - 13:57:24 -1344
Sleaford 13:44:41 -10.5 NT Up 49.5 189.1 Up 13:29:41 - 13:59:41 -1353
Tonasket 13:42:24 -17.9 AT Up 52.5 167.0 Up 13:27:24 - 13:57:24 -1369
Okanogan 13:42:24 -17.9 AT Up 52.8 166.6 Up 13:27:24 - 13:57:24 -1395
Brewster 13:42:24 -18.0 AT Up 53.1 166.2 Up 13:27:24 - 13:57:24 -1415
Manson/Chelan 13:42:24 -18.2 Dark Up 53.2 165.6 Up 13:27:24 - 13:57:24 -1427
Wenatchee 13:42:24 -18.2 Dark Up 53.6 165.1 Up 13:27:24 - 13:57:24 -1466
Ellensburg 13:42:24 -18.2 Dark Up 54.0 164.6 Up 13:27:24 - 13:57:24 -1500
Yakima 13:41:46 -18.2 Dark Up 54.4 164.2 Up 13:26:46 - 13:56:46 -1514
Toppenish/White Swan 13:41:46 -18.1 Dark Up 54.6 164.4 Up 13:26:46 - 13:56:46 -1537
Goldendale 13:41:39 -18.2 Dark Up 55.0 163.4 Up 13:26:39 - 13:56:39 -1573
The Dalles 13:41:33 -18.4 Dark Up 55.2 162.6 Up 13:26:33 - 13:56:33 -1583
PNWRO 13:42:24 -16.8 AT Up 55.2 167.0 Up 13:27:24 - 13:57:24 -1610
Maupin 13:41:31 -18.3 Dark Up 55.6 162.6 Up 13:26:31 - 13:56:31 -1621
Sisters 13:41:21 -18.4 Dark Up 56.3 161.3 Up 13:26:21 - 13:56:21 -1684
Bend 13:41:23 -18.2 Dark Up 56.6 161.7 Up 13:26:23 - 13:56:23 -1711
Oregon Observatory 13:41:21 -18.2 Dark Up 56.7 161.3 Up 13:26:21 - 13:56:21 -1722
North Lake 13:41:22 -17.7 AT Up 57.5 162.0 Up 13:26:22 - 13:56:22 -1791
Chiloquin 13:41:07 -18.2 Dark Up 57.9 159.8 Up 13:26:07 - 13:56:07 -1826
Klamath Falls 13:41:05 -18.1 Dark Up 58.2 159.8 Up 13:26:05 - 13:56:05 -1858
Lakeview 13:41:22 -17.0 AT Up 58.6 162.5 Up 13:26:22 - 13:56:22 -1898
Cedarville 13:41:21 -16.7 AT Up 59.3 162.4 Up 13:26:21 - 13:56:21 -1961
Fall River/Burney 13:41:03 -17.5 AT Up 59.4 159.8 Up 13:26:03 - 13:56:03 -1972
Susanville 13:41:08 -16.8 AT Up 60.2 160.8 Up 13:26:08 - 13:56:08 -2048
Greenville 13:41:04 -17.0 AT Up 60.4 160.1 Up 13:26:04 - 13:56:04 -2065
Gimple 13:41:03 -16.9 AT Up 60.4 160.2 Up 13:26:03 - 13:56:03 -2068
Quincy 13:41:00 -16.9 AT Up 60.6 159.9 Up 13:26:00 - 13:56:00 -2084
Portola 13:41:07 -16.5 AT Up 60.8 160.8 Up 13:26:07 - 13:56:07 -2107
Reno 13:41:13 -15.9 AT Up 61.2 162.0 Up 13:26:13 - 13:56:13 -2149
Carson City 13:41:12 -15.8 AT Up 61.6 161.8 Up 13:26:12 - 13:56:12 -2182
Gardnerville 13:41:11 -15.7 AT Up 61.8 161.8 Up 13:26:11 - 13:56:11 -2206
Yerington 13:41:17 -15.3 AT Up 61.9 163.0 Up 13:26:17 - 13:56:17 -2217
Hawthorne 13:41:21 -14.7 AT Up 62.5 163.9 Up 13:26:21 - 13:56:21 -2273
Lee Vining 13:41:13 -15.0 AT Up 62.9 162.5 Up 13:26:13 - 13:56:13 -2312
Tonopah 13:41:37 -13.5 AT Up 63.2 166.8 Up 13:26:37 - 13:56:37 -2354
Bishop 13:41:19 -14.2 AT Up 63.7 163.8 Up 13:26:19 - 13:56:19 -2388
Dunrhomin 13:44:17 -5.1 CT Up 61.0 193.6 Up 13:29:17 - 13:59:17 -2435
CU-SBO 13:44:17 -5.1 CT Up 61.2 193.5 Up 13:29:17 - 13:59:17 -2456
Beatty 13:41:35 -12.8 AT Up 64.4 167.3 Up 13:26:35 - 13:56:35 -2475
Indian Springs 13:41:49 -11.8 NT Up 64.9 169.7 Up 13:26:49 - 13:56:49 -2535
Henderson 13:42:24 -11.0 NT Up 65.6 171.4 Up 13:27:24 - 13:57:24 -2611
Wildwood 13:40:58 -13.4 AT Up 66.7 161.0 Up 13:25:58 - 13:55:58 -2692
Patrick 13:42:24 -9.9 NT Up 66.3 173.9 Up 13:27:24 - 13:57:24 -2696
Laughlin/Bullhead City 13:42:24 -10.4 NT Up 66.5 172.1 Up 13:27:24 - 13:57:24 -2705
Kingman/Dolan Springs 13:42:24 -10.0 NT Up 66.5 173.4 Up 13:27:24 - 13:57:24 -2714
Mohave Valley 13:42:24 -10.3 NT Up 66.8 172.1 Up 13:27:24 - 13:57:24 -2732
Lake Havasu City 13:42:24 -9.9 NT Up 67.2 172.6 Up 13:27:24 - 13:57:24 -2777
Idyllwild 13:41:21 -11.7 NT Up 67.5 165.6 Up 13:26:21 - 13:56:21 -2779
Parker 13:42:24 -9.8 NT Up 67.5 172.5 Up 13:27:24 - 13:57:24 -2812
Calipatria 13:41:32 -10.6 NT Up 68.3 168.4 Up 13:26:32 - 13:56:32 -2872
George/Scottsdale 13:42:26 -7.7 NT Up 68.1 178.8 Up 13:27:26 - 13:57:26 -2912
Yuma 13:41:43 -9.7 NT Up 68.9 170.7 Up 13:26:43 - 13:56:43 -2939

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 59358, (2022/12/07 13:41UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3 18.04  81
Denebola       11:49:02.9 +14:34:17  2.1  7.10 102
PPM 128238     11:24:58.8 +11:25:49  5.8  0.81  98
PPM 128145     11:18:21.1 +11:59:03  6.8  0.94  97
PPM 128205     11:22:44.8 +11:35:01 10.0  0.29  98
59358          11:22:08.1 +11:50:15 16.2        98
Positions are for J2000

Event circumstances last updated at 2022/10/03 04:13:47 UT

Marc W. Buie, Southwest Research Institute

RECON