Apian

19139, 1989 GJ8, 1989GJ8, 1999 XP18, 1999XP18, J89G08J, J99X18P

All data for this body: [vot]

MPC data
Name (number) Apian (19139)
a 2.58498
e 0.07696
i / sin(i) 8.0138 / 0.13941
q 2.38604
Q 2.78393
ω 338.4977
Node 48.1641
m 47.5365
n 0.2371
Epoch 2460800.5
nobs 3451
nopp 24
Years observed 1989-2025
rms 0.65
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.584
ep 0.049
sin(ip) 0.126
G 0.150
H 13.650
Mass
D 5.60 0.083
pV 0.277 0.0322
Value
Rotational Period 6.693
Period quality 2
Spectral Class S
Spectral Class Score 3.018
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5840 0.0486 0.1259 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.28 0.231 0.231 Masiero 2011ApJ...741...68M NEATM
5.64 0.089 0.089 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.266 0.0387 0.0387 Masiero 2011ApJ...741...68M NEATM
0.303 0.0579 0.0579 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
13.65 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
6.69316 2 Synodic Pal 2020ApJS..247...26P Lightcurve
6.69702 2 Sidereal Durech 2020A&A...643A..59D Model
6.69705 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.503 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT