| Parameter |
Value |
| Designation |
215P/NEAT |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2019-10-03T03:11:06.688320Z |
| Orbit solution date (soln_date, UTC) |
2026-04-30T15:12:18Z |
| Obs used |
1051 |
| NEO |
- |
| M1 |
8.900 |
| K1 |
12.000 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2016-01-23.0000000 |
| e |
0.19510819 |
| q (au) |
3.499171 |
| a (au) |
4.347380 |
| i (deg) |
10.057993 |
| Ω (om, deg) |
61.210767 |
| ω (w, deg) |
255.377155 |
| M (ma, deg) |
213.304327 |
Magnitude
Scatter + Global Linear
$$
M_a = (11.686 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
11.686 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.793 |
| k |
0.800 |
| 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) |
| 2026-06-01 00:00 |
12:53:12.75 |
+01:47:36.4 |
HIP 62835 |
13.22 |
| 2026-06-01 12:00 |
12:53:08.36 |
+01:46:47.3 |
HIP 62835 |
13.04 |
| 2026-06-02 00:00 |
12:53:04.18 |
+01:45:56.8 |
HIP 62835 |
13.06 |
| 2026-06-02 12:00 |
12:53:00.20 |
+01:45:05.0 |
HIP 62835 |
13.26 |
| 2026-06-03 00:00 |
12:52:56.42 |
+01:44:12.0 |
HIP 62835 |
13.62 |
| 2026-06-03 12:00 |
12:52:52.84 |
+01:43:17.7 |
HIP 62835 |
14.13 |
| 2026-06-04 00:00 |
12:52:49.46 |
+01:42:22.1 |
HIP 62835 |
14.76 |
| 2026-06-04 12:00 |
12:52:46.29 |
+01:41:25.2 |
HIP 62835 |
15.50 |
| 2026-06-05 00:00 |
12:52:43.32 |
+01:40:27.0 |
HIP 62835 |
16.33 |
| 2026-06-05 12:00 |
12:52:40.55 |
+01:39:27.6 |
HIP 62835 |
17.23 |
| 2026-06-06 00:00 |
12:52:37.98 |
+01:38:27.0 |
HIP 62835 |
18.20 |
| 2026-06-06 12:00 |
12:52:35.62 |
+01:37:25.0 |
HIP 62835 |
19.21 |
| 2026-06-07 00:00 |
12:52:33.45 |
+01:36:21.8 |
HIP 62835 |
20.26 |
| 2026-06-07 12:00 |
12:52:31.50 |
+01:35:17.4 |
HIP 62835 |
21.34 |
| 2026-06-08 00:00 |
12:52:29.74 |
+01:34:11.7 |
HIP 62835 |
22.45 |
| 2026-06-08 12:00 |
12:52:28.19 |
+01:33:04.8 |
HIP 62835 |
23.58 |
| 2026-06-09 00:00 |
12:52:26.83 |
+01:31:56.6 |
HIP 62835 |
24.74 |
| 2026-06-09 12:00 |
12:52:25.69 |
+01:30:47.2 |
HIP 62835 |
25.92 |
| 2026-06-10 00:00 |
12:52:24.74 |
+01:29:36.6 |
HIP 62835 |
27.11 |
| 2026-06-10 12:00 |
12:52:24.00 |
+01:28:24.7 |
HIP 62835 |
28.32 |
| 2026-06-11 00:00 |
12:52:23.46 |
+01:27:11.6 |
HIP 62736 |
27.37 |
| 2026-06-11 12:00 |
12:52:23.12 |
+01:25:57.3 |
HIP 62736 |
26.33 |
| 2026-06-12 00:00 |
12:52:22.98 |
+01:24:41.8 |
HIP 62736 |
25.33 |
| 2026-06-12 12:00 |
12:52:23.05 |
+01:23:25.1 |
HIP 62736 |
24.36 |
| 2026-06-13 00:00 |
12:52:23.32 |
+01:22:07.2 |
HIP 62736 |
23.45 |
| 2026-06-13 12:00 |
12:52:23.79 |
+01:20:48.1 |
HIP 62736 |
22.60 |
| 2026-06-14 00:00 |
12:52:24.47 |
+01:19:27.8 |
HIP 62736 |
21.82 |
| 2026-06-14 12:00 |
12:52:25.35 |
+01:18:06.4 |
HIP 62736 |
21.13 |
| 2026-06-15 00:00 |
12:52:26.42 |
+01:16:43.7 |
HIP 62736 |
20.53 |
| 2026-06-15 12:00 |
12:52:27.70 |
+01:15:19.9 |
HIP 62736 |
20.05 |
| 2026-06-16 00:00 |
12:52:29.19 |
+01:13:54.9 |
HIP 62736 |
19.70 |
| 2026-06-16 12:00 |
12:52:30.87 |
+01:12:28.7 |
HIP 62736 |
19.49 |
| 2026-06-17 00:00 |
12:52:32.75 |
+01:11:01.4 |
HIP 62736 |
19.44 |
| 2026-06-17 12:00 |
12:52:34.83 |
+01:09:33.0 |
HIP 62736 |
19.55 |
| 2026-06-18 00:00 |
12:52:37.11 |
+01:08:03.4 |
HIP 62736 |
19.83 |
| 2026-06-18 12:00 |
12:52:39.60 |
+01:06:32.6 |
HIP 62736 |
20.28 |
| 2026-06-19 00:00 |
12:52:42.28 |
+01:05:00.8 |
HIP 62736 |
20.90 |
| 2026-06-19 12:00 |
12:52:45.15 |
+01:03:27.8 |
HIP 62736 |
21.68 |
| 2026-06-20 00:00 |
12:52:48.23 |
+01:01:53.7 |
HIP 62736 |
22.62 |
| 2026-06-20 12:00 |
12:52:51.50 |
+01:00:18.6 |
HIP 62736 |
23.70 |
| 2026-06-21 00:00 |
12:52:54.97 |
+00:58:42.3 |
HIP 62736 |
24.92 |
| 2026-06-21 12:00 |
12:52:58.63 |
+00:57:05.0 |
HIP 62736 |
26.25 |
| 2026-06-22 00:00 |
12:53:02.49 |
+00:55:26.5 |
HIP 62736 |
27.70 |