1177 T-3

1177T-3, 1981 NB, 1981NB, 19898, 1998 QW60, 1998QW60, J81N00B, J98Q60W, T3S1177

All data for this body: [vot]

MPC data
Name (number) 1177 T-3 (19898)
a 3.10919
e 0.17467
i / sin(i) 7.5292 / 0.13103
q 2.56609
Q 3.65228
ω 250.4509
Node 283.0269
m 93.5545
n 0.1798
Epoch 2460800.5
nobs 3272
nopp 26
Years observed 1977-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.111
ep 0.201
sin(ip) 0.160
G 0.150
H 12.990
Mass
D 8.86 0.631
pV 0.156 0.0526
Value
Rotational Period 2.550
Period quality 2
Spectral Class K
Spectral Class Score 2.308
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1112 0.2007 0.1598 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.86 0.631 0.631 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.156 0.0526 0.0526 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
12.99 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.557692 2 Sidereal Durech 2019A&A...631A...2D Model
2.5577 2 Sidereal Durech 2023A&A...675A..24D Model
2.558 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
K K 0.3847 0.3847 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT