1999 AC2

1999AC2, 16976, 1949 MM, 1949MM, 1993 PG5, 1993PG5, J49M00M, J93P05G, J99A02C

All data for this body: [vot]

MPC data
Name (number) 1999 AC2 (16976)
a 2.36529
e 0.18251
i / sin(i) 2.0113 / 0.03510
q 1.93359
Q 2.79698
ω 38.6065
Node 204.2708
m 324.3283
n 0.2709
Epoch 2460800.5
nobs 3913
nopp 23
Years observed 1949-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.365
ep 0.198
sin(ip) 0.042
G 0.150
H 14.070
Mass
D 4.13 0.153
pV 0.260 0.0095
Value
Rotational Period 4.160
Period quality 2-
Spectral Class S
Spectral Class Score 10.942
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
135 Hertha 0 Hertha Novakovic 2019EPSC...13.1671N HCM
44 Nysa 405 Nysa-Polana -1.0400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3655 0.1976 0.0423 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.13 0.153 0.153 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.260 0.0095 0.0095 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
14.07 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.83113 2 Sidereal Durech 2023A&A...675A..24D Model
4.163 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.864 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.9597 0.9597 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT