Johandemessie

12857, 1998 HQ97, 1998HQ97, 1999 NL40, 1999NL40, J98H97Q, J99N40L

All data for this body: [vot]

MPC data
Name (number) Johandemessie (12857)
a 2.90237
e 0.07444
i / sin(i) 2.0214 / 0.03527
q 2.68632
Q 3.11843
ω 344.2919
Node 8.8665
m 40.6852
n 0.1993
Epoch 2460800.5
nobs 3085
nopp 24
Years observed 1993-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent Koronis (158)
 
ap 2.903
ep 0.042
sin(ip) 0.040
G 0.150
H 13.670
Mass
D
pV
Value
Rotational Period 2.600
Period quality 2
Spectral Class X
Spectral Class Score 2.328
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
158 Koronis 0 Koronis Novakovic 2019EPSC...13.1671N HCM
158 Koronis 605 Koronis 0.3000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9026 0.0424 0.0399 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
13.67 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.69 2 Synodic Yeh 2020AJ....160...73Y Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
X 0.388 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT