C/2001 RX14 (LINEAR)
| Parameter |
Value |
| Designation |
C/2001 RX14 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2003-01-18T16:52:12.123840Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:11Z |
| Obs used |
3261 |
| NEO |
- |
| M1 |
9.700 |
| K1 |
6.500 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2002-12-31.0000000 |
| e |
1.00160630 |
| q (au) |
2.057562 |
| a (au) |
-1280.933457 |
| i (deg) |
30.574145 |
| Ω (om, deg) |
14.169847 |
| ω (w, deg) |
121.485659 |
| M (ma, deg) |
-0.000402 |
Magnitude
Scatter + Global Linear
$$
M_a = (7.044 + 3.284\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
7.044 |
| n |
3.284 |
| gf |
0.998 |
| gb |
-0.598 |
| k |
0.998 |
| δ90 |
9.993 |
| 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
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
20:04:28.10 |
-50:52:51.8 |
HIP 98855 |
7.91 |
| 2026-02-03 12:00 |
20:04:32.34 |
-50:52:49.6 |
HIP 98855 |
7.91 |
| 2026-02-04 00:00 |
20:04:36.58 |
-50:52:47.5 |
HIP 98855 |
7.97 |
| 2026-02-04 12:00 |
20:04:40.80 |
-50:52:45.6 |
HIP 98855 |
8.09 |
| 2026-02-05 00:00 |
20:04:45.02 |
-50:52:43.9 |
HIP 98855 |
8.26 |
| 2026-02-05 12:00 |
20:04:49.22 |
-50:52:42.4 |
HIP 98855 |
8.48 |
| 2026-02-06 00:00 |
20:04:53.41 |
-50:52:41.1 |
HIP 98855 |
8.75 |
| 2026-02-06 12:00 |
20:04:57.60 |
-50:52:40.0 |
HIP 98855 |
9.06 |
| 2026-02-07 00:00 |
20:05:01.77 |
-50:52:39.0 |
HIP 98855 |
9.41 |
| 2026-02-07 12:00 |
20:05:05.93 |
-50:52:38.2 |
HIP 98855 |
9.79 |
| 2026-02-08 00:00 |
20:05:10.08 |
-50:52:37.6 |
HIP 98855 |
10.20 |
| 2026-02-08 12:00 |
20:05:14.22 |
-50:52:37.2 |
HIP 98855 |
10.64 |
| 2026-02-09 00:00 |
20:05:18.34 |
-50:52:36.9 |
HIP 98855 |
11.10 |
| 2026-02-09 12:00 |
20:05:22.45 |
-50:52:36.8 |
HIP 98855 |
11.57 |
| 2026-02-10 00:00 |
20:05:26.55 |
-50:52:37.0 |
HIP 98855 |
12.07 |
| 2026-02-10 12:00 |
20:05:30.64 |
-50:52:37.3 |
HIP 98855 |
12.58 |
| 2026-02-11 00:00 |
20:05:34.71 |
-50:52:37.7 |
HIP 98855 |
13.10 |
| 2026-02-11 12:00 |
20:05:38.77 |
-50:52:38.4 |
HIP 98855 |
13.63 |
| 2026-02-12 00:00 |
20:05:42.82 |
-50:52:39.2 |
HIP 98855 |
14.17 |
| 2026-02-12 12:00 |
20:05:46.85 |
-50:52:40.3 |
HIP 99053 |
14.56 |
| 2026-02-13 00:00 |
20:05:50.87 |
-50:52:41.5 |
HIP 99053 |
14.24 |
| 2026-02-13 12:00 |
20:05:54.87 |
-50:52:42.9 |
HIP 99053 |
13.94 |
| 2026-02-14 00:00 |
20:05:58.86 |
-50:52:44.4 |
HIP 99053 |
13.67 |
| 2026-02-14 12:00 |
20:06:02.83 |
-50:52:46.2 |
HIP 99053 |
13.43 |
| 2026-02-15 00:00 |
20:06:06.79 |
-50:52:48.1 |
HIP 99053 |
13.21 |
| 2026-02-15 12:00 |
20:06:10.73 |
-50:52:50.2 |
HIP 99053 |
13.03 |
| 2026-02-16 00:00 |
20:06:14.66 |
-50:52:52.5 |
HIP 99053 |
12.88 |
| 2026-02-16 12:00 |
20:06:18.57 |
-50:52:55.0 |
HIP 99053 |
12.76 |
| 2026-02-17 00:00 |
20:06:22.46 |
-50:52:57.7 |
HIP 99053 |
12.67 |
| 2026-02-17 12:00 |
20:06:26.33 |
-50:53:00.5 |
HIP 99053 |
12.62 |
| 2026-02-18 00:00 |
20:06:30.19 |
-50:53:03.5 |
HIP 99053 |
12.60 |
| 2026-02-18 12:00 |
20:06:34.03 |
-50:53:06.7 |
HIP 99053 |
12.61 |
| 2026-02-19 00:00 |
20:06:37.85 |
-50:53:10.1 |
HIP 99053 |
12.65 |
| 2026-02-19 12:00 |
20:06:41.66 |
-50:53:13.7 |
HIP 99053 |
12.73 |
| 2026-02-20 00:00 |
20:06:45.45 |
-50:53:17.4 |
HIP 99053 |
12.84 |
| 2026-02-20 12:00 |
20:06:49.21 |
-50:53:21.4 |
HIP 99053 |
12.97 |
| 2026-02-21 00:00 |
20:06:52.96 |
-50:53:25.5 |
HIP 99053 |
13.14 |
| 2026-02-21 12:00 |
20:06:56.69 |
-50:53:29.8 |
HIP 99053 |
13.33 |
| 2026-02-22 00:00 |
20:07:00.40 |
-50:53:34.2 |
HIP 99053 |
13.54 |
| 2026-02-22 12:00 |
20:07:04.10 |
-50:53:38.9 |
HIP 99053 |
13.78 |
| 2026-02-23 00:00 |
20:07:07.77 |
-50:53:43.7 |
HIP 99053 |
14.05 |
| 2026-02-23 12:00 |
20:07:11.42 |
-50:53:48.7 |
HIP 99053 |
14.33 |
| 2026-02-24 00:00 |
20:07:15.05 |
-50:53:53.9 |
HIP 99053 |
14.63 |