RECON: TNO occultation with 02CX224

Event between 02CX224 and star GA1220:01280396 with event index number of 362830

Geocentric closest approach at 2020/10/20 11:52:10 UTC

J2000 position of star is 04:53:45.5 +32:02:40
Equinox of date position of star is 04:54:58.5 +32:04:27
Stellar brightness G=16.4, use SENSEUP=128
Star is 170 degrees from the moon. Moon is 19% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 46.5 AU from the Sun and 45.9 AU from the Earth.
The TNO is moving 16.7 km/sec on the sky relative to the star, or, 1.8 arcsec/hr.
The 1-sigma error in the time of the event is 657 seconds.
The 1-sigma cross-track error in the shadow position is 4480 km.
The sky-plane scale is 33274.3 km/arcsec.

The TNO has an absolute magnitude Hv=6.0
Diameter=378.5 km assuming a 5% albedo -- 22.7 sec chord
Diameter=154.5 km assuming a 30% albedo -- 9.3 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 02CX224, (2020/10/20 11:52UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:07.0 +16:32:58  0.8 16.05 169
3Iot Aur       04:58:21.1 +33:11:50  2.7  1.31 169
PPM 069666     04:50:40.1 +32:37:22  6.0  1.08 169
PPM 069709     04:53:48.5 +32:01:11  7.8  0.28 170
PPM 069734     04:55:31.5 +32:14:37  9.3  0.19 170
02CX224        04:55:06.2 +32:04:38 16.4       170
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 1.4 sigma about the mid-time.
The median site spacing is 20.9 km RECON observability=1.0 and success probability=7.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 11:51:29 -25.8 Dark Down 69.2 216.5 Up 11:36:29 - 12:06:29 6027
Summerland 11:51:30 -26.0 Dark Down 69.3 215.8 Up 11:36:30 - 12:06:30 6015
Penticton 11:51:28 -26.0 Dark Down 69.5 216.7 Up 11:36:28 - 12:06:28 5987
Okanagan Falls 11:51:29 -26.0 Dark Down 69.7 216.9 Up 11:36:29 - 12:06:29 5967
Oliver 11:51:28 -26.1 Dark Down 69.8 217.2 Up 11:36:28 - 12:06:28 5951
Anarchist Mountain Observatory 11:51:27 -26.0 Dark Down 69.9 217.9 Up 11:36:27 - 12:06:27 5938
Oroville 11:51:26 -26.1 Dark Down 70.0 217.9 Up 11:36:26 - 12:06:26 5929
Tonasket 11:51:27 -26.1 Dark Down 70.1 218.3 Up 11:36:27 - 12:06:27 5906
Okanogan 11:51:26 -26.3 Dark Down 70.5 218.6 Up 11:36:26 - 12:06:26 5869
Brewster 11:51:27 -26.5 Dark Down 70.8 218.6 Up 11:36:27 - 12:06:27 5837
Manson/Chelan 11:51:29 -26.8 Dark Down 71.1 218.2 Up 11:36:29 - 12:06:29 5808
Entiat 11:51:28 -26.9 Dark Down 71.3 218.4 Up 11:36:28 - 12:06:28 5784
Wenatchee 11:51:28 -27.0 Dark Down 71.5 218.6 Up 11:36:28 - 12:06:28 5757
Ellensburg 11:51:28 -27.3 Dark Down 71.9 218.9 Up 11:36:28 - 12:06:28 5710
Yakima 11:51:27 -27.4 Dark Down 72.3 219.6 Up 11:36:27 - 12:06:27 5668
Pasco 11:51:20 -26.5 Dark Down 71.9 223.6 Up 11:36:20 - 12:06:20 5665
Toppenish/White Swan 11:51:26 -27.3 Dark Down 72.3 220.5 Up 11:36:26 - 12:06:26 5649
PNWRO 11:51:18 -26.4 Dark Down 71.9 224.6 Up 11:36:18 - 12:06:18 5645
George/Umatilla 11:51:20 -26.7 Dark Down 72.2 223.8 Up 11:36:20 - 12:06:20 5626
Goldendale 11:51:26 -27.7 Dark Down 73.0 220.6 Up 11:36:26 - 12:06:26 5584
The Dalles 11:51:27 -28.0 Dark Down 73.3 220.2 Up 11:36:27 - 12:06:27 5553
Maupin 11:51:26 -28.1 Dark Down 73.6 221.4 Up 11:36:26 - 12:06:26 5512
Madras/Culver 11:51:25 -28.2 Dark Down 74.0 222.5 Up 11:36:25 - 12:06:25 5455
Niwot 11:50:04 -17.3 AT Down 65.9 259.4 Up 11:35:04 - 12:05:04 5435
Redmond 11:51:26 -28.4 Dark Down 74.3 223.2 Up 11:36:26 - 12:06:26 5417
Sisters 11:51:27 -28.6 Dark Down 74.5 222.1 Up 11:36:27 - 12:06:27 5410
Bend 11:51:25 -28.5 Dark Down 74.5 223.4 Up 11:36:25 - 12:06:25 5391
Oregon Observatory 11:51:25 -28.6 Dark Down 74.7 223.5 Up 11:36:25 - 12:06:25 5370
La Pine/Gilchrist 11:51:25 -28.7 Dark Down 74.9 223.8 Up 11:36:25 - 12:06:25 5348
North Lake 11:51:21 -28.4 Dark Down 74.9 226.5 Up 11:36:21 - 12:06:21 5316
Paisley 11:51:18 -28.3 Dark Down 75.1 228.9 Up 11:36:18 - 12:06:18 5267
Chiloquin 11:51:25 -29.2 Dark Down 75.8 225.9 Up 11:36:25 - 12:06:25 5224
Lakeview 11:51:17 -28.2 Dark Down 75.3 230.8 Up 11:36:17 - 12:06:17 5218
Klamath Falls 11:51:24 -29.3 Dark Down 76.0 227.1 Up 11:36:24 - 12:06:24 5190
Tulelake 11:51:22 -29.1 Dark Down 76.1 228.7 Up 11:36:22 - 12:06:22 5169
Cedarville 11:51:14 -28.3 Dark Down 75.6 233.2 Up 11:36:14 - 12:06:14 5154
Fall River/Burney 11:51:19 -29.2 Dark Down 76.6 231.7 Up 11:36:19 - 12:06:19 5075
Susanville 11:51:14 -28.8 Dark Down 76.5 235.7 Up 11:36:14 - 12:06:14 5026
Gimple 11:51:15 -29.0 Dark Down 76.8 236.2 Up 11:36:15 - 12:06:15 4992
Greenville 11:51:16 -29.1 Dark Down 76.9 236.0 Up 11:36:16 - 12:06:16 4991
Quincy 11:51:15 -29.1 Dark Down 77.0 236.7 Up 11:36:15 - 12:06:15 4969
Portola 11:51:13 -28.8 Dark Down 76.7 238.3 Up 11:36:13 - 12:06:13 4967
Reno 11:51:08 -28.4 Dark Down 76.5 240.7 Up 11:36:08 - 12:06:08 4955
Carson City 11:51:08 -28.4 Dark Down 76.6 242.0 Up 11:36:08 - 12:06:08 4918
Yerington 11:51:04 -28.0 Dark Down 76.3 244.0 Up 11:36:04 - 12:06:04 4913
Gardnerville 11:51:07 -28.4 Dark Down 76.7 243.0 Up 11:36:07 - 12:06:07 4893
Hawthorne 11:51:00 -27.7 Dark Down 76.1 246.8 Up 11:36:00 - 12:06:00 4878
Tonopah 11:50:53 -26.7 Dark Down 75.3 250.9 Up 11:35:53 - 12:05:53 4866
Lee Vining 11:51:02 -28.1 Dark Down 76.7 248.0 Up 11:36:02 - 12:06:02 4806
Bishop 11:50:57 -27.7 Dark Down 76.4 251.6 Up 11:35:57 - 12:05:57 4762
Beatty 11:50:48 -26.5 Dark Down 75.3 255.7 Up 11:35:48 - 12:05:48 4757
Indian Springs 11:50:42 -25.6 Dark Down 74.5 258.3 Up 11:35:42 - 12:05:42 4753
Henderson 11:50:38 -25.2 Dark Down 74.1 260.9 Up 11:35:38 - 12:05:38 4717
Lone Pine 11:50:54 -27.5 Dark Down 76.3 255.1 Up 11:35:54 - 12:05:54 4691
Patrick 11:50:31 -24.3 Dark Down 73.3 264.0 Up 11:35:31 - 12:05:31 4684
DCO 11:50:27 -23.8 Dark Down 72.7 265.6 Up 11:35:27 - 12:05:27 4674
Searchlight/Boulder City 11:50:35 -25.2 Dark Down 74.1 262.9 Up 11:35:35 - 12:05:35 4659
Kingman/Dolan Springs 11:50:31 -24.5 Dark Down 73.5 264.6 Up 11:35:31 - 12:05:31 4656
Laughlin/Bullhead City 11:50:35 -24.9 Dark Down 73.9 264.3 Up 11:35:35 - 12:05:35 4638
Mohave Valley 11:50:33 -24.9 Dark Down 73.9 265.2 Up 11:35:33 - 12:05:33 4610
Lake Havasu City 11:50:31 -24.8 Dark Down 73.7 266.8 Up 11:35:31 - 12:05:31 4575
Parker 11:50:30 -24.8 Dark Down 73.7 268.0 Up 11:35:30 - 12:05:30 4539
CPSLO 11:51:04 -29.7 Dark Down 78.7 257.0 Up 11:36:04 - 12:06:04 4487
Blythe 11:50:30 -25.1 Dark Down 74.0 269.6 Up 11:35:30 - 12:05:30 4476
Idyllwild 11:50:42 -26.8 Dark Down 75.7 267.9 Up 11:35:42 - 12:05:42 4426
Wildwood 11:50:51 -28.3 Dark Down 77.2 265.0 Up 11:35:51 - 12:05:51 4412
Calipatria 11:50:35 -25.9 Dark Down 74.7 270.9 Up 11:35:35 - 12:05:35 4396
Yuma 11:50:29 -25.1 Dark Down 74.0 272.8 Up 11:35:29 - 12:05:29 4378

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 02CX224, (2020/10/20 11:52UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 16.05 169
3Iot Aur       04:56:59.6 +33:09:58  2.7  1.31 169
PPM 069666     04:49:19.1 +32:35:16  6.0  1.08 169
PPM 069709     04:52:27.8 +31:59:11  7.8  0.28 170
PPM 069734     04:54:10.7 +32:12:40  9.3  0.19 170
02CX224        04:53:45.5 +32:02:40 16.4       170
Positions are for J2000

Event circumstances last updated at 2018/10/27 20:48:47 UT

Marc W. Buie, Southwest Research Institute

RECON