2002 NP42

2002NP42, 1999 VD199, 1999VD199, 99845, J99VJ9D, K02N42P

All data for this body: [vot]

MPC data
Name (number) 2002 NP42 (99845)
a 2.55479
e 0.09132
i / sin(i) 14.5742 / 0.25163
q 2.32148
Q 2.78811
ω 60.8863
Node 109.0476
m 336.5307
n 0.2414
Epoch 2460800.5
nobs 1363
nopp 20
Years observed 1999-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.554
ep 0.137
sin(ip) 0.239
G 0.150
H 15.150
Mass
D 2.87 0.794
pV 0.163 0.1046
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 5.406
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 502 Eunomia -0.4900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5544 0.1372 0.2389 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.87 0.794 0.794 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.163 0.1046 0.1046 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
15.15 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 0.07 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.2170 0.5230 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.6606 0.5230 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT