1991 NS1

1991NS1, 08669, 1987 MR, 1987MR, J87M00R, J91N01S

All data for this body: [vot]

MPC data
Name (number) 1991 NS1 (8669)
a 2.43160
e 0.17591
i / sin(i) 6.6269 / 0.11540
q 2.00386
Q 2.85934
ω 126.0498
Node 172.9563
m 333.9983
n 0.2599
Epoch 2460800.5
nobs 5315
nopp 24
Years observed 1991-2025
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.432
ep 0.150
sin(ip) 0.117
G 0.150
H 13.610
Mass
D 3.87 0.052
pV 0.326 0.0978
Value
Rotational Period 20.339
Period quality 2
Spectral Class V
Spectral Class Score 8.329
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
67 Asia -1 Asia -1.0000 Nesvorny 2024ApJS..274...25N HCM-2024
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4324 0.1497 0.1167 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.87 0.052 0.052 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.326 0.0978 0.0978 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
13.61 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
20.3392 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.871 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
V DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
V 0.17 Bus VIS Carvano 2010A&A...510A..43C PHOT
V V 0.9981 0.9981 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT