1999 XN218

1999XN218, 2002 RP221, 2002RP221, D7777, J99XL8N, K02RM1P

All data for this body: [vot]

MPC data
Name (number) 1999 XN218 (137777)
a 2.37402
e 0.18445
i / sin(i) 4.5258 / 0.07891
q 1.93613
Q 2.81192
ω 328.5039
Node 92.5160
m 7.6257
n 0.2694
Epoch 2460800.5
nobs 1035
nopp 15
Years observed 1999-2025
rms 0.80
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.373
ep 0.178
sin(ip) 0.062
G 0.150
H 16.130
Mass
D
pV
Value
Rotational Period 7.000
Period quality 2
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3734 0.1784 0.0620 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
16.13 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
7.0 2 Synodic Waszczak 2015AJ....150...75W Lightcurve