Orbit Fit and Astrometric record for 24LV7

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.

# Object: 24LV7     
# Created Wed Dec 25 02:11:22 2024
# Orbit generated from Bernstein formalism
# Fitting     14 observations of     14
# Arc:   1.25y
# First observation: 2023/03/28
#  Last observation: 2024/06/28
Preliminary a, adot, b, bdot, g, gdot:
   0.000177   0.611402  -0.000215   0.045549   0.276288   0.000000
# WARNING MRQMIN stopped after  17 iterations -- oscilliatory solution
# Chi-squared of fit:    27.07 DOF:     22 RMS:  0.25
# Min/Max residuals:    -0.22    0.54
# Exact a, adot, b, bdot, g, gdot:
  4.273492E-05  4.736333E-01  2.723613E-06  2.697726E-02  1.789906E-01 -5.446309E-02
# Covariance matrix:
  3.6711E-13 -6.1044E-13  9.6547E-17 -2.2155E-14 -1.2668E-13 -4.2222E-13
 -6.1044E-13  1.2660E-09  7.9426E-13  8.4148E-11  3.6827E-10  2.1308E-09
  9.6547E-17  7.9426E-13  3.6719E-13 -2.4989E-13  2.1001E-13  1.3929E-12
 -2.2155E-14  8.4148E-11 -2.4989E-13  5.9188E-12  2.4603E-11  1.4135E-10
 -1.2668E-13  3.6827E-10  2.1001E-13  2.4603E-11  1.0983E-10  6.1292E-10
 -4.2222E-13  2.1308E-09  1.3929E-12  1.4135E-10  6.1292E-10  3.6061E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
   26.730324 -146.957878    0.439878    0.407211   -0.809111  2460031.935744
# Heliocentric elements and errors
Epoch:              2460030.5000  =  2023/03/27
Mean Anomaly:          320.58679 +/-     0.012
Argument of Peri:      140.76547 +/-     0.020
Long of Asc Node:      130.27477 +/-     0.001
Inclination:            23.47579 +/-     0.000
Eccentricity:         0.23916223 +/-    0.0001
Semi-Major Axis:      7.58734163 +/-    0.0009
Time of Perihelion: 2460866.2419 +/-       0.2
Perihelion:           5.77273606 +/-    0.0012
Aphelion:             9.40194721 +/-    0.0015
Period (y)               20.8998 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -5.17291973 +/-    0.0002
Ecliptic Y           -2.84541900 +/-    0.0002
Ecliptic Z            2.51297366 +/-    0.0001
Ecliptic XDOT         0.00472753 +/-    0.0000
Ecliptic YDOT        -0.00555747 +/-    0.0000
Ecliptic ZDOT        -0.00000618 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO    6.41642770 +/-    0.0002
Geocenter to KBO      5.58688575 +/-    0.0003
# Hcoef: 13.73

The following table shows the complete astrometric record for 24LV7. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (24LV7) followed by the observatory code and reference code for the source of the astrometry.

2023 03  28.434943 14 39 32.954  +12 38 53.49  22.1w 24LV7     F52  C~875K      
2023 03  28.445743 14 39 32.789  +12 38 56.02  22.3w 24LV7     F52  C~875K      
2023 03  28.456516 14 39 32.622  +12 38 58.78  22.1w 24LV7     F52  C~875K      
2023 03  28.467299 14 39 32.437  +12 39 01.16  22.0w 24LV7     F52  C~875L      
2024 06  03.384616 16 09 10.899  +05 45 48.41  21.7w 24LV7     F52  C~875L      
2024 06  03.396568 16 09 10.600  +05 45 47.93  21.7w 24LV7     F52  C~875L      
2024 06  03.408508 16 09 10.290  +05 45 47.67  21.6w 24LV7     F52  C~875L      
2024 06  03.420596 16 09 09.960  +05 45 47.36  21.4w 24LV7     F52  C~875L      
2024 06  14.428480 16 04 44.002  +05 34 18.07  21.9w 24LV7     F51  C~875L      
2024 06  14.440463 16 04 43.727  +05 34 16.98  21.6w 24LV7     F51  C~875L      
2024 06  14.453434 16 04 43.419  +05 34 15.75  21.6w 24LV7     F51  C~875L      
2024 06  28.332926 16 00 04.268  +05 04 26.40  21.6w 24LV7     F52  C~875L      
2024 06  28.347372 16 00 04.015  +05 04 23.96  21.8w 24LV7     F52  C~875L      
2024 06  28.376338 16 00 03.494  +05 04 19.00  22.0w 24LV7     F52  C~875L      

The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.

     1   0.0000      0.00    -0.18       0.00    -0.07
     2   0.0000     -3.13     0.01       1.55    -0.06
     3   0.0001     -6.37     0.10       3.31     0.17
     4   0.0001     -9.73     0.08       4.62    -0.06
     5   1.1854  87887.29     0.19    7271.80     0.13
     6   1.1854  87882.66     0.42    7269.34     0.11
     7   1.1854  87877.76     0.36    7267.03     0.23
     8   1.1855  87872.55     0.06    7264.54     0.19
     9   1.2156  83908.05     0.48    4841.20     0.14
    10   1.2156  83904.15     0.54    4838.34     0.19
    11   1.2157  83899.79     0.46    4835.13     0.14
    12   1.2537  80270.84     0.22    1283.44     0.08
    13   1.2537  80267.94     0.33    1279.43     0.03
    14   1.2538  80261.93     0.34    1271.25    -0.22

The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.

24LV7    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj         7.571     7.595     7.547
ecceobj         0.237     0.234     0.239
incobj         23.468    23.476    23.460
qmin            3.914     5.817     5.346
qmax           12.609     9.374    13.733
amean           8.227     7.595     8.674
amin            7.571     7.595     7.381
amax            8.627     7.595     9.752
emean           0.411     0.234     0.335
emin            0.237     0.234     0.222
emax            0.521     0.234     0.408
imean          17.093    22.028    22.910
imin           10.812    22.028    20.971
imax           23.364    22.028    25.233
excite_mean     0.514     0.442     0.515
fracstop        0.003     0.000     0.001
cjmean          4.565     4.871     4.418

libcent 0      -180.0    -180.0    -180.0
libamp  0      -180.0    -180.0    -180.0
libcent 1      -180.0    -180.0    -180.0
libamp  1      -180.0    -180.0    -180.0
libcent 2      -180.0    -180.0    -180.0
libamp  2      -180.0    -180.0    -180.0
libcent 3      -180.0    -180.0    -180.0
libamp  3      -180.0    -180.0    -180.0
libcent 4      -180.0    -180.0    -180.0
libamp  4      -180.0    -180.0    -180.0

kozaimean       257.2     140.5     204.5
kozaiamp         78.4       0.0     166.5