1999 NY55

1999NY55, 40397, J99N55Y

All data for this body: [vot]

MPC data
Name (number) 1999 NY55 (40397)
a 2.66589
e 0.10881
i / sin(i) 12.4832 / 0.21615
q 2.37582
Q 2.95596
ω 217.2454
Node 255.4176
m 189.9578
n 0.2264
Epoch 2460800.5
nobs 3099
nopp 22
Years observed 1991-2025
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.666
ep 0.134
sin(ip) 0.234
G 0.150
H 13.930
Mass
D 4.60 0.162
pV 0.303 0.0780
Value
Rotational Period 76.146
Period quality 2
Spectral Class S
Spectral Class Score 20.521
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6657 0.1339 0.2336 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.60 0.162 0.162 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.303 0.0780 0.0780 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
13.93 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
76.1465 2 Synodic Pal 2020ApJS..247...26P Lightcurve
76.166 2 Sidereal Durech 2018A&A...617A..57D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
L S 0.4719 0.8430 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.79 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.9034 0.8430 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9550 0.8430 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9651 0.8430 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT