1999 RZ221

1999RZ221, 1997 HA5, 1997HA5, 1999 VA206, 1999VA206, 38421, J97H05A, J99RM1Z, J99VK6A

All data for this body: [vot]

MPC data
Name (number) 1999 RZ221 (38421)
a 3.14547
e 0.23105
i / sin(i) 14.3080 / 0.24714
q 2.41872
Q 3.87222
ω 307.3550
Node 344.6068
m 263.0567
n 0.1767
Epoch 2460800.5
nobs 2130
nopp 23
Years observed 1997-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent Meliboea (137)
 
ap 3.157
ep 0.212
sin(ip) 0.260
G 0.150
H 13.430
Mass
D 6.51 0.065
pV 0.200 0.0427
Value
Rotational Period 3.157
Period quality 2
Spectral Class S
Spectral Class Score 12.537
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
137 Meliboea 604 Meliboea Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1574 0.2123 0.2598 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.51 0.065 0.065 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.200 0.0427 0.0427 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
13.43 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.15712 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 DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.84 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.4796 0.6880 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9965 0.6880 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT