| Parameter |
Value |
| Designation |
P/2004 R3 (LINEAR-NEAT) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2004-05-24T11:56:33.253440Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:42Z |
| Obs used |
143 |
| NEO |
- |
| M1 |
17.000 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2004-09-30.0000000 |
| e |
0.44181829 |
| q (au) |
2.141488 |
| a (au) |
3.836543 |
| i (deg) |
7.972159 |
| Ω (om, deg) |
318.806424 |
| ω (w, deg) |
5.298112 |
| M (ma, deg) |
16.854088 |
Magnitude
Scatter + Global Linear
$$
M_a = (16.211 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
16.211 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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
Finding Chart
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
10:39:07.37 |
+02:00:40.5 |
HIP 52201 |
31.99 |
| 2026-09-20 12:00 |
10:39:27.38 |
+01:58:12.5 |
HIP 52201 |
32.86 |
| 2026-09-21 00:00 |
10:39:47.36 |
+01:55:44.3 |
HIP 52201 |
34.62 |
| 2026-09-21 12:00 |
10:40:07.31 |
+01:53:16.1 |
HIP 52205 |
36.06 |
| 2026-09-22 00:00 |
10:40:27.23 |
+01:50:47.8 |
HIP 52205 |
34.28 |
| 2026-09-22 12:00 |
10:40:47.11 |
+01:48:19.5 |
HIP 52205 |
33.34 |
| 2026-09-23 00:00 |
10:41:06.96 |
+01:45:51.1 |
HIP 52205 |
33.31 |
| 2026-09-23 12:00 |
10:41:26.78 |
+01:43:22.6 |
HIP 52454 |
31.27 |
| 2026-09-24 00:00 |
10:41:46.56 |
+01:40:54.0 |
HIP 52454 |
27.94 |
| 2026-09-24 12:00 |
10:42:06.30 |
+01:38:25.4 |
HIP 52454 |
25.39 |
| 2026-09-25 00:00 |
10:42:26.01 |
+01:35:56.7 |
HIP 52454 |
23.87 |
| 2026-09-25 12:00 |
10:42:45.68 |
+01:33:28.0 |
HIP 52454 |
23.58 |
| 2026-09-26 00:00 |
10:43:05.32 |
+01:30:59.3 |
HIP 52454 |
24.55 |
| 2026-09-26 12:00 |
10:43:24.91 |
+01:28:30.4 |
HIP 52454 |
26.65 |
| 2026-09-27 00:00 |
10:43:44.47 |
+01:26:01.6 |
HIP 52563 |
29.05 |
| 2026-09-27 12:00 |
10:44:03.99 |
+01:23:32.7 |
HIP 52563 |
29.02 |
| 2026-09-28 00:00 |
10:44:23.47 |
+01:21:03.8 |
HIP 52610 |
26.22 |
| 2026-09-28 12:00 |
10:44:42.91 |
+01:18:34.8 |
HIP 52610 |
21.35 |
| 2026-09-29 00:00 |
10:45:02.31 |
+01:16:05.8 |
HIP 52610 |
16.86 |
| 2026-09-29 12:00 |
10:45:21.67 |
+01:13:36.8 |
HIP 52610 |
13.10 |
| 2026-09-30 00:00 |
10:45:40.99 |
+01:11:07.7 |
HIP 52610 |
10.88 |
| 2026-09-30 12:00 |
10:46:00.27 |
+01:08:38.7 |
HIP 52610 |
11.13 |
| 2026-10-01 00:00 |
10:46:19.50 |
+01:06:09.6 |
HIP 52610 |
13.71 |
| 2026-10-01 12:00 |
10:46:38.69 |
+01:03:40.5 |
HIP 52610 |
17.61 |
| 2026-10-02 00:00 |
10:46:57.84 |
+01:01:11.4 |
HIP 52610 |
22.14 |
| 2026-10-02 12:00 |
10:47:16.94 |
+00:58:42.3 |
HIP 52610 |
26.98 |
| 2026-10-03 00:00 |
10:47:36.00 |
+00:56:13.2 |
HIP 52610 |
31.98 |
| 2026-10-03 12:00 |
10:47:55.01 |
+00:53:44.2 |
HIP 52949 |
27.42 |
| 2026-10-04 00:00 |
10:48:13.97 |
+00:51:15.1 |
HIP 52949 |
23.17 |
| 2026-10-04 12:00 |
10:48:32.89 |
+00:48:46.0 |
HIP 52949 |
19.48 |
| 2026-10-05 00:00 |
10:48:51.76 |
+00:46:16.9 |
HIP 52949 |
16.71 |
| 2026-10-05 12:00 |
10:49:10.58 |
+00:43:47.9 |
HIP 52949 |
15.37 |
| 2026-10-06 00:00 |
10:49:29.35 |
+00:41:18.9 |
HIP 52949 |
15.81 |
| 2026-10-06 12:00 |
10:49:48.07 |
+00:38:49.9 |
HIP 52949 |
17.88 |
| 2026-10-07 00:00 |
10:50:06.74 |
+00:36:21.0 |
HIP 52949 |
21.11 |
| 2026-10-07 12:00 |
10:50:25.36 |
+00:33:52.1 |
HIP 52949 |
25.04 |
| 2026-10-08 00:00 |
10:50:43.93 |
+00:31:23.2 |
HIP 53175 |
29.03 |
| 2026-10-08 12:00 |
10:51:02.44 |
+00:28:54.4 |
HIP 53175 |
24.31 |
| 2026-10-09 00:00 |
10:51:20.90 |
+00:26:25.7 |
HIP 53175 |
19.86 |
| 2026-10-09 12:00 |
10:51:39.31 |
+00:23:57.0 |
HIP 53175 |
15.92 |
| 2026-10-10 00:00 |
10:51:57.66 |
+00:21:28.4 |
HIP 53175 |
12.94 |
| 2026-10-10 12:00 |
10:52:15.95 |
+00:18:59.9 |
HIP 53175 |
11.66 |
| 2026-10-11 00:00 |
10:52:34.19 |
+00:16:31.4 |
HIP 53175 |
12.59 |