Kellyday

18805, 1999 JX77, 1999JX77, 3337 T-2, 3337T-2, J99J77X, T2S3337

All data for this body: [vot]

MPC data
Name (number) Kellyday (18805)
a 2.23228
e 0.04250
i / sin(i) 7.4583 / 0.12980
q 2.13741
Q 2.32714
ω 110.4207
Node 162.8747
m 250.8258
n 0.2955
Epoch 2460800.5
nobs 3349
nopp 21
Years observed 1973-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.233
ep 0.036
sin(ip) 0.132
G 0.150
H 14.580
Mass
D 4.03 0.470
pV 0.208 0.0540
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 17.625
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2326 0.0357 0.1317 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.03 0.470 0.470 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.208 0.0540 0.0540 Masiero 2012ApJ...759L...8M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.58 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.66 Bus VIS Carvano 2010A&A...510A..43C PHOT
S 0.988 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.4114 0.8230 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9848 0.8230 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT