1999 NW55

1999NW55, 38232, J99N55W

All data for this body: [vot]

MPC data
Name (number) 1999 NW55 (38232)
a 2.63170
e 0.13605
i / sin(i) 11.7624 / 0.20386
q 2.27366
Q 2.98974
ω 41.3725
Node 264.1318
m 24.8623
n 0.2309
Epoch 2460800.5
nobs 1498
nopp 22
Years observed 1993-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.632
ep 0.117
sin(ip) 0.219
G 0.150
H 14.780
Mass
D 4.03 1.205
pV 0.172 0.0682
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 10.867
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6320 0.1167 0.2190 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.03 1.205 1.205 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.172 0.0682 0.0682 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
14.78 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 S 0.8552 0.7560 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S 0.956 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
V S 0.4742 0.7560 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT