| Parameter |
Value |
| Designation |
453P/WISE-Lemmon |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2023-03-02T23:53:38.328000Z |
| Orbit solution date (soln_date, UTC) |
2023-08-06T18:13:35Z |
| Obs used |
324 |
| NEO |
- |
| M1 |
11.400 |
| K1 |
16.750 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2022-11-01T07:57:29.203200Z |
| Discovery magnitude (MPC) |
19.39 G |
| Discovery observatory (MPC) |
G96 · University of Arizona Mt. Lemmon Survey |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2022-10-12.0000000 |
| e |
0.58243939 |
| q (au) |
2.278541 |
| a (au) |
5.456791 |
| i (deg) |
27.067709 |
| Ω (om, deg) |
42.897454 |
| ω (w, deg) |
70.816364 |
| M (ma, deg) |
349.020743 |
Magnitude
Scatter + Global Linear
$$
M_a = (11.183 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
11.183 |
| n |
6.000 |
| 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
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
17:04:28.53 |
-41:50:17.6 |
HIP 83403 |
31.20 |
| 2026-06-01 12:00 |
17:04:09.39 |
-41:50:37.2 |
HIP 83403 |
28.89 |
| 2026-06-02 00:00 |
17:03:50.22 |
-41:50:55.7 |
HIP 83403 |
26.88 |
| 2026-06-02 12:00 |
17:03:31.04 |
-41:51:13.2 |
HIP 83403 |
25.22 |
| 2026-06-03 00:00 |
17:03:11.83 |
-41:51:29.7 |
HIP 83403 |
24.00 |
| 2026-06-03 12:00 |
17:02:52.60 |
-41:51:45.2 |
HIP 83403 |
23.29 |
| 2026-06-04 00:00 |
17:02:33.36 |
-41:51:59.7 |
HIP 83266 |
20.37 |
| 2026-06-04 12:00 |
17:02:14.10 |
-41:52:13.2 |
HIP 83266 |
17.49 |
| 2026-06-05 00:00 |
17:01:54.84 |
-41:52:25.7 |
HIP 83266 |
14.94 |
| 2026-06-05 12:00 |
17:01:35.56 |
-41:52:37.2 |
HIP 83266 |
12.91 |
| 2026-06-06 00:00 |
17:01:16.29 |
-41:52:47.7 |
HIP 83266 |
11.67 |
| 2026-06-06 12:00 |
17:00:57.00 |
-41:52:57.2 |
HIP 83266 |
11.48 |
| 2026-06-07 00:00 |
17:00:37.72 |
-41:53:05.7 |
HIP 83161 |
11.53 |
| 2026-06-07 12:00 |
17:00:18.44 |
-41:53:13.1 |
HIP 83161 |
8.49 |
| 2026-06-08 00:00 |
16:59:59.17 |
-41:53:19.6 |
HIP 83161 |
6.12 |
| 2026-06-08 12:00 |
16:59:39.91 |
-41:53:25.1 |
HIP 83161 |
5.34 |
| 2026-06-09 00:00 |
16:59:20.65 |
-41:53:29.7 |
HIP 83161 |
6.75 |
| 2026-06-09 12:00 |
16:59:01.41 |
-41:53:33.2 |
HIP 83161 |
9.40 |
| 2026-06-10 00:00 |
16:58:42.18 |
-41:53:35.7 |
HIP 83161 |
12.52 |
| 2026-06-10 12:00 |
16:58:22.98 |
-41:53:37.3 |
HIP 83161 |
15.84 |
| 2026-06-11 00:00 |
16:58:03.79 |
-41:53:37.8 |
HIP 83161 |
19.25 |
| 2026-06-11 12:00 |
16:57:44.63 |
-41:53:37.4 |
HIP 83161 |
22.71 |
| 2026-06-12 00:00 |
16:57:25.50 |
-41:53:36.1 |
HIP 83161 |
26.19 |
| 2026-06-12 12:00 |
16:57:06.39 |
-41:53:33.7 |
HIP 82783 |
25.77 |
| 2026-06-13 00:00 |
16:56:47.32 |
-41:53:30.4 |
HIP 82783 |
22.72 |
| 2026-06-13 12:00 |
16:56:28.29 |
-41:53:26.2 |
HIP 82783 |
19.84 |
| 2026-06-14 00:00 |
16:56:09.29 |
-41:53:20.9 |
HIP 82783 |
17.22 |
| 2026-06-14 12:00 |
16:55:50.33 |
-41:53:14.8 |
HIP 82783 |
15.01 |
| 2026-06-15 00:00 |
16:55:31.42 |
-41:53:07.7 |
HIP 82783 |
13.38 |
| 2026-06-15 12:00 |
16:55:12.55 |
-41:52:59.6 |
HIP 82706 |
10.55 |
| 2026-06-16 00:00 |
16:54:53.73 |
-41:52:50.6 |
HIP 82706 |
7.31 |
| 2026-06-16 12:00 |
16:54:34.96 |
-41:52:40.7 |
HIP 82706 |
4.50 |
| 2026-06-17 00:00 |
16:54:16.25 |
-41:52:29.9 |
HIP 82691 |
3.21 |
| 2026-06-17 12:00 |
16:53:57.60 |
-41:52:18.2 |
HIP 82691 |
3.64 |
| 2026-06-18 00:00 |
16:53:39.00 |
-41:52:05.5 |
HIP 82676 |
5.64 |
| 2026-06-18 12:00 |
16:53:20.47 |
-41:51:52.0 |
HIP 82676 |
8.46 |
| 2026-06-19 00:00 |
16:53:02.00 |
-41:51:37.5 |
HIP 82543 |
7.97 |
| 2026-06-19 12:00 |
16:52:43.60 |
-41:51:22.2 |
HIP 82543 |
4.54 |
| 2026-06-20 00:00 |
16:52:25.27 |
-41:51:06.0 |
HIP 82543 |
1.13 |
| 2026-06-20 12:00 |
16:52:07.02 |
-41:50:49.0 |
HIP 82543 |
2.32 |
| 2026-06-21 00:00 |
16:51:48.83 |
-41:50:31.0 |
HIP 82543 |
5.71 |
| 2026-06-21 12:00 |
16:51:30.73 |
-41:50:12.3 |
HIP 82543 |
9.10 |
| 2026-06-22 00:00 |
16:51:12.70 |
-41:49:52.6 |
HIP 82543 |
12.47 |