101P/Chernykh
Metadata
| Parameter | Value |
|---|---|
| Designation | 101P/Chernykh |
| Type | P |
| Perihelion (tp_cal, UTC) | 2020-01-07T18:38:07.975680Z |
| Orbit solution date (soln_date, UTC) | 2024-08-26T10:57:16Z |
| Obs used | 1211 |
| NEO | - |
| M1 | 13.700 |
| K1 | 4.500 |
| PC | - |
Osculating Elements
| Parameter | Value |
|---|---|
| Epoch (epoch_cal, TDB) | 2014-10-13.0000000 |
| e | 0.59774254 |
| q (au) | 2.325778 |
| a (au) | 5.781815 |
| i (deg) | 5.033943 |
| Ω (om, deg) | 116.589097 |
| ω (w, deg) | 277.434541 |
| M (ma, deg) | 224.396168 |
Magnitude
Scatter + Global Linear
$$ M_a = (12.453 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta $$ $$ \theta = 180^\circ - \alpha $$ $$ \Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b) $$ $$ \Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1 $$
Model Parameters
| Parameter | Value |
|---|---|
| H0 | 12.453 |
| n | 2.000 |
| gf | 1.000 |
| gb | -0.997 |
| k | 1.000 |
| δ90 | 10.000 |
| Parameter | Symbol | Range | Description |
|---|---|---|---|
| Absolute magnitude at 1 AU from Sun and Earth | H0 | -5 to 20 | Intrinsic brightness of the comet |
| Photometric slope parameter | n | 2 to 6 | Rate of brightness change with heliocentric distance |
| Forward scattering asymmetry factor | gf |
0.8 to 1 | Degree of forward scattering |
| Backward scattering asymmetry factor | gb |
-1 to -0.5 | Degree of backward scattering |
| Partitioning coefficient | k | 0.8 to 1 | Ratio between forward/backward scattering contributions |
| Dust-to-gas brightness ratio | δ90 | 1 to 10 | Relative contribution of dust scattering to gas emission |
Reference: EPSC-DPS2025-160
Residuals (Piecewise)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| Start (UTC) | End (UTC) | a | b |
|---|---|---|---|
| 2019-07-04 | 2020-01-07 | +34.8196 | -13.263 |
| 2020-01-08 | 2021-01-03 | +3.7173 | -2.221 |
| 2021-01-03 | 2022-03-01 | +4.6114 | -3.220 |
log10 r = log10(heliocentric distance / AU), Δ = geocentric distance (AU)
Finding Chart
Ephemeris
| Date/Time (UTC) | RA (J2000) | Dec (J2000) | Nearest HIP | Dist from HIP (arcmin) |
|---|---|---|---|---|
| 2026-06-01 00:00 | 13:38:34.08 | -04:22:10.1 | HIP 66675 | 25.70 |
| 2026-06-01 12:00 | 13:38:27.50 | -04:21:46.7 | HIP 66675 | 27.03 |
| 2026-06-02 00:00 | 13:38:21.01 | -04:21:23.9 | HIP 66675 | 28.39 |
| 2026-06-02 12:00 | 13:38:14.60 | -04:21:01.6 | HIP 66675 | 29.77 |
| 2026-06-03 00:00 | 13:38:08.28 | -04:20:40.0 | HIP 66450 | 29.86 |
| 2026-06-03 12:00 | 13:38:02.05 | -04:20:18.9 | HIP 66450 | 29.63 |
| 2026-06-04 00:00 | 13:37:55.90 | -04:19:58.5 | HIP 66450 | 29.48 |
| 2026-06-04 12:00 | 13:37:49.84 | -04:19:38.6 | HIP 66450 | 29.41 |
| 2026-06-05 00:00 | 13:37:43.87 | -04:19:19.4 | HIP 66450 | 29.41 |
| 2026-06-05 12:00 | 13:37:37.99 | -04:19:00.7 | HIP 66450 | 29.49 |
| 2026-06-06 00:00 | 13:37:32.19 | -04:18:42.7 | HIP 66450 | 29.63 |
| 2026-06-06 12:00 | 13:37:26.49 | -04:18:25.2 | HIP 66324 | 28.96 |
| 2026-06-07 00:00 | 13:37:20.87 | -04:18:08.4 | HIP 66324 | 27.63 |
| 2026-06-07 12:00 | 13:37:15.35 | -04:17:52.2 | HIP 66324 | 26.34 |
| 2026-06-08 00:00 | 13:37:09.91 | -04:17:36.6 | HIP 66324 | 25.07 |
| 2026-06-08 12:00 | 13:37:04.57 | -04:17:21.6 | HIP 66324 | 23.84 |
| 2026-06-09 00:00 | 13:36:59.32 | -04:17:07.2 | HIP 66324 | 22.64 |
| 2026-06-09 12:00 | 13:36:54.16 | -04:16:53.4 | HIP 66324 | 21.48 |
| 2026-06-10 00:00 | 13:36:49.09 | -04:16:40.3 | HIP 66324 | 20.35 |
| 2026-06-10 12:00 | 13:36:44.12 | -04:16:27.7 | HIP 66324 | 19.26 |
| 2026-06-11 00:00 | 13:36:39.24 | -04:16:15.8 | HIP 66324 | 18.20 |
| 2026-06-11 12:00 | 13:36:34.45 | -04:16:04.5 | HIP 66324 | 17.19 |
| 2026-06-12 00:00 | 13:36:29.76 | -04:15:53.8 | HIP 66324 | 16.22 |
| 2026-06-12 12:00 | 13:36:25.16 | -04:15:43.8 | HIP 66324 | 15.30 |
| 2026-06-13 00:00 | 13:36:20.66 | -04:15:34.3 | HIP 66324 | 14.42 |
| 2026-06-13 12:00 | 13:36:16.25 | -04:15:25.5 | HIP 66324 | 13.60 |
| 2026-06-14 00:00 | 13:36:11.94 | -04:15:17.3 | HIP 66324 | 12.83 |
| 2026-06-14 12:00 | 13:36:07.73 | -04:15:09.8 | HIP 66324 | 12.12 |
| 2026-06-15 00:00 | 13:36:03.61 | -04:15:02.8 | HIP 66324 | 11.47 |
| 2026-06-15 12:00 | 13:35:59.59 | -04:14:56.5 | HIP 66324 | 10.89 |
| 2026-06-16 00:00 | 13:35:55.66 | -04:14:50.8 | HIP 66324 | 10.38 |
| 2026-06-16 12:00 | 13:35:51.84 | -04:14:45.8 | HIP 66324 | 9.94 |
| 2026-06-17 00:00 | 13:35:48.11 | -04:14:41.3 | HIP 66324 | 9.58 |
| 2026-06-17 12:00 | 13:35:44.48 | -04:14:37.5 | HIP 66324 | 9.30 |
| 2026-06-18 00:00 | 13:35:40.95 | -04:14:34.3 | HIP 66324 | 9.09 |
| 2026-06-18 12:00 | 13:35:37.51 | -04:14:31.8 | HIP 66324 | 8.97 |
| 2026-06-19 00:00 | 13:35:34.18 | -04:14:29.8 | HIP 66324 | 8.91 |
| 2026-06-19 12:00 | 13:35:30.94 | -04:14:28.5 | HIP 66324 | 8.92 |
| 2026-06-20 00:00 | 13:35:27.80 | -04:14:27.8 | HIP 66324 | 8.99 |
| 2026-06-20 12:00 | 13:35:24.76 | -04:14:27.7 | HIP 66324 | 9.11 |
| 2026-06-21 00:00 | 13:35:21.83 | -04:14:28.3 | HIP 66324 | 9.28 |
| 2026-06-21 12:00 | 13:35:18.99 | -04:14:29.4 | HIP 66324 | 9.48 |
| 2026-06-22 00:00 | 13:35:16.24 | -04:14:31.2 | HIP 66324 | 9.71 |