| Parameter |
Value |
| Designation |
236P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2010-09-08T16:59:26.387520Z |
| Orbit solution date (soln_date, UTC) |
2024-08-02T01:42:28Z |
| Obs used |
855 |
| NEO |
- |
| M1 |
15.800 |
| K1 |
8.000 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2012-02-08.0000000 |
| e |
0.50861051 |
| q (au) |
1.831984 |
| a (au) |
3.728170 |
| i (deg) |
16.333956 |
| Ω (om, deg) |
245.660604 |
| ω (w, deg) |
119.340798 |
| M (ma, deg) |
70.826590 |
Magnitude
Scatter + Global Linear
$$
M_a = (11.262 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
11.262 |
| n |
6.000 |
| gf |
0.934 |
| gb |
-0.999 |
| k |
1.000 |
| δ90 |
8.082 |
| 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) |
| 2026-05-12 00:00 |
07:29:38.13 |
+08:32:03.4 |
HIP 36535 |
19.42 |
| 2026-05-12 12:00 |
07:30:05.08 |
+08:31:47.6 |
HIP 36535 |
12.80 |
| 2026-05-13 00:00 |
07:30:32.11 |
+08:31:30.8 |
HIP 36535 |
6.26 |
| 2026-05-13 12:00 |
07:30:59.24 |
+08:31:13.2 |
HIP 36535 |
2.01 |
| 2026-05-14 00:00 |
07:31:26.45 |
+08:30:54.6 |
HIP 36535 |
7.71 |
| 2026-05-14 12:00 |
07:31:53.75 |
+08:30:35.2 |
HIP 36535 |
14.36 |
| 2026-05-15 00:00 |
07:32:21.14 |
+08:30:14.8 |
HIP 36675 |
12.41 |
| 2026-05-15 12:00 |
07:32:48.61 |
+08:29:53.5 |
HIP 36675 |
10.89 |
| 2026-05-16 00:00 |
07:33:16.16 |
+08:29:31.3 |
HIP 36675 |
13.26 |
| 2026-05-16 12:00 |
07:33:43.80 |
+08:29:08.1 |
HIP 36675 |
18.07 |
| 2026-05-17 00:00 |
07:34:11.52 |
+08:28:44.1 |
HIP 36911 |
17.27 |
| 2026-05-17 12:00 |
07:34:39.33 |
+08:28:19.1 |
HIP 36911 |
10.58 |
| 2026-05-18 00:00 |
07:35:07.21 |
+08:27:53.3 |
HIP 36911 |
4.55 |
| 2026-05-18 12:00 |
07:35:35.17 |
+08:27:26.5 |
HIP 36911 |
5.01 |
| 2026-05-19 00:00 |
07:36:03.20 |
+08:26:58.8 |
HIP 37027 |
8.21 |
| 2026-05-19 12:00 |
07:36:31.31 |
+08:26:30.2 |
HIP 37027 |
4.31 |
| 2026-05-20 00:00 |
07:36:59.50 |
+08:26:00.6 |
HIP 37027 |
8.20 |
| 2026-05-20 12:00 |
07:37:27.76 |
+08:25:30.2 |
HIP 37027 |
14.64 |
| 2026-05-21 00:00 |
07:37:56.09 |
+08:24:58.9 |
HIP 37027 |
21.45 |
| 2026-05-21 12:00 |
07:38:24.49 |
+08:24:26.6 |
HIP 37338 |
25.36 |
| 2026-05-22 00:00 |
07:38:52.97 |
+08:23:53.5 |
HIP 37338 |
19.94 |
| 2026-05-22 12:00 |
07:39:21.51 |
+08:23:19.4 |
HIP 37338 |
15.86 |
| 2026-05-23 00:00 |
07:39:50.12 |
+08:22:44.4 |
HIP 37338 |
14.36 |
| 2026-05-23 12:00 |
07:40:18.79 |
+08:22:08.6 |
HIP 37459 |
15.16 |
| 2026-05-24 00:00 |
07:40:47.53 |
+08:21:31.8 |
HIP 37459 |
8.14 |
| 2026-05-24 12:00 |
07:41:16.33 |
+08:20:54.1 |
HIP 37459 |
2.12 |
| 2026-05-25 00:00 |
07:41:45.20 |
+08:20:15.6 |
HIP 37459 |
6.73 |
| 2026-05-25 12:00 |
07:42:14.13 |
+08:19:36.1 |
HIP 37459 |
13.76 |
| 2026-05-26 00:00 |
07:42:43.12 |
+08:18:55.8 |
HIP 37657 |
13.80 |
| 2026-05-26 12:00 |
07:43:12.17 |
+08:18:14.5 |
HIP 37657 |
6.64 |
| 2026-05-27 00:00 |
07:43:41.28 |
+08:17:32.4 |
HIP 37657 |
1.42 |
| 2026-05-27 12:00 |
07:44:10.44 |
+08:16:49.4 |
HIP 37657 |
8.05 |
| 2026-05-28 00:00 |
07:44:39.67 |
+08:16:05.4 |
HIP 37657 |
15.27 |
| 2026-05-28 12:00 |
07:45:08.95 |
+08:15:20.6 |
HIP 37657 |
22.54 |
| 2026-05-29 00:00 |
07:45:38.29 |
+08:14:35.0 |
HIP 37997 |
24.87 |
| 2026-05-29 12:00 |
07:46:07.68 |
+08:13:48.4 |
HIP 37997 |
18.34 |
| 2026-05-30 00:00 |
07:46:37.12 |
+08:13:01.0 |
HIP 37997 |
12.68 |
| 2026-05-30 12:00 |
07:47:06.62 |
+08:12:12.6 |
HIP 37997 |
9.64 |
| 2026-05-31 00:00 |
07:47:36.17 |
+08:11:23.4 |
HIP 38040 |
4.82 |
| 2026-05-31 12:00 |
07:48:05.77 |
+08:10:33.3 |
HIP 38040 |
5.34 |
| 2026-06-01 00:00 |
07:48:35.42 |
+08:09:42.4 |
HIP 38040 |
11.95 |
| 2026-06-01 12:00 |
07:49:05.12 |
+08:08:50.6 |
HIP 38213 |
9.27 |
| 2026-06-02 00:00 |
07:49:34.87 |
+08:07:57.8 |
HIP 38213 |
3.36 |