1998 QA87

1998QA87, 2000 AB185, 2000AB185, 44290, J98Q87A, K00AI5B

All data for this body: [vot]

MPC data
Name (number) 1998 QA87 (44290)
a 2.76629
e 0.13340
i / sin(i) 11.5392 / 0.20004
q 2.39726
Q 3.13532
ω 184.1474
Node 263.5943
m 206.8876
n 0.2142
Epoch 2460800.5
nobs 2580
nopp 22
Years observed 1998-2025
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.765
ep 0.149
sin(ip) 0.215
G 0.150
H 14.250
Mass
D 4.80 0.186
pV 0.231 0.0218
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 16.271
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7649 0.1492 0.2146 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.74 0.259 0.259 Masiero 2011ApJ...741...68M NEATM
4.87 0.268 0.268 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.225 0.0300 0.0300 Masiero 2011ApJ...741...68M NEATM
0.237 0.0317 0.0317 Masiero 2011ApJ...741...68M 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
14.25 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
D S 0.3538 0.4630 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S 0.907 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.4587 0.4630 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.4637 0.4630 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.8824 0.4630 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V S 0.0857 0.4630 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V S 0.7700 0.4630 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT