Nordic Optical Telescope

Program: 70-501 Sollerman ea

External Project: Extragalactic transient classifications for the Vera Rubin Observatory Community

Observing instructions:

Scripts:
~obs/scripts/70-501/

In this directory you will find the OB compiled scripts. Please execute the requested scripts.

P70 tracking

Program Tracking

Proposal 70-501

Semester P71: 20250401 - 20251001

Principal Investigator Jesper Sollerman

Programme External Project: Extragalactic transient classifications for the Vera Rubin Observatory Community

Instrument AL +NC +FI

Time Allocation 35h hard ToO, 35h SoftToO

Total Nights 7

Type ToO+SoftToO

Notes

Total Time Spent 43:17 (hh:mm)

Proposal Date Time Type Targets Files Comments Status

70-501 2025-04-04 00:36 SoftToO ZTF25aajuqtp ALId040075 - ALId040080 Clear skies and subarcsec seeing Observed

70-501 2025-04-17 01:56 SoftToO ZTF25aameppw, ZTF25aalximq ALId170057 - ALId170063, ALId170133 - ALId170139 Clear skies and seeing around 1.0'' Observed

70-501 2025-04-26 00:34 SoftToO ZTF25aakeqyr, 2025na ALId260140 - ALId260145,ALId260170 - ALId260174 Dark, clear sky, good seeing. Observed

70-501 2025-04-27 01:33 SoftToO ZTF25aanjafq, ZTF25aajsivt ALId270039 - ALId270045,ALId270140 - ALId270146 Clear sky, good seeing. Observed

70-501 2025-05-12 00:33 SoftToO ZTF24abymeet ALIe120097 - ALIe120104 Clear skies, and the seeing was around 1.2". The data was shared with 70-503. Observed

70-501 2025-05-19 00:37 SoftToO ZTF25aagbrpb ALIe190109 - ALIe190114 Seeing fluctuating between 0.9 and 1.71, therefore observed with 1.3 slit. Thin clouds. Observed

70-501 2025-05-26 01:42 SoftToO 2024ggi, ZTF24abymeet ALIe260067 - ALIe260073, ALIe260162 - ALIe260169 Clear skies, and the seeing was around 1.2". Observed

70-501 2025-05-29 01:08 SoftToO ZTF25aasaovv ALIe290066 - ALIe290073 Observed with high airmass. Good seeing (below 1.0"), and clear/dark skies Observed

70-501 2025-05-31 00:26 SoftToO 2025few ALIe310094 - ALIe310099 Observed with clear skies and seeing around 1.0". Observed

70-501 2025-06-07 00:37 SoftToO 2025mvn ALIf070120 - ALIf070126 Observed under clear sky and seeing 0.6" Observed

70-501 2025-06-08 00:38 SoftToO ZTF25aapsdaj ALIf080143 - ALIf080149 Observed with clear sky and seeing below 1.0'' Observed

70-501 2025-06-12 01:08 SoftToO ZTF25aapplfd ALIf120099 - ALIf120105 Thin clouds and good seeing. Observed

70-501 2025-06-13 00:28 ToO ZTF25aauvber ALIf130088 - ALIf130094 Observed

70-501 2025-06-15 00:32 ToO ZTF25aauvber ALIf150069 - ALIf150081 Thick clouds at the start of the night and opted for observing the ToO with thin clouds and seeing around 1.5" in case the cloud cover came back. There was an error moving the mirror in and turning the halogen lamp on after the first exposure, so the OB was repeated but went straight to the calibration frames, so please use those. The time has been accounted for. Observed

70-501 2025-06-19 02:03 SoftToO ZTF25aavahfn, ZTF24abymeet ALIf190175 - ALIf190188 Both targets observed with clear skies and good seeing. Observed

70-501 2025-06-22 01:18 SoftToO ZTF25aardatq, ZTF24abzxalv ALIf220079 - ALIf220085; ALIf220109 - ALIf220115 Targets observed in clear skies. For the second target, the seeing had worsened, averaging around 1.5"-2.0", so the 1_3 OB was run instead. Observed

70-501 2025-06-26 01:35 SoftToO ZTF25aarmzhx, ZTF22aanyxmg ALIf260133 - ALIf260145 Clear skies, and the seeing was oscillating between 0.6" and 0.8". Observed

70-501 2025-06-27 01:31 SoftToO ZTF25aaprtxj, ZTF22aanyxmg ALIf270122 - ALIf270127, ALIf270133 - ALIf270141 Clear skies, and the seeing was oscillating between 0.7" and 0.9". Observed

70-501 2025-06-28 01:32 SoftToO ZTF25aavgfqk, ZTF25aasjeza ALIf280054 - ALIf280061, ALIf280134 - ALIf280142 Observed under clear sky and seeing around 0.8"-1". Observed

70-501 2025-06-29 02:18 SoftToO ZTF24abymeet, ZTF25aaxdccu ALIf290099 - ALIf290105, ALIf290129 - ALIf290135 Observed under clear sky and seeing around 1". Observed

70-501 2025-07-11 00:54 SoftToO ZTF25aasjeza ALIg110200 - ALIg110208 Observed with a subarcsec seeing Observed

70-501 2025-07-12 02:05 SoftToO ZTF25aayelvu, ZTF22aanyxmg, ZTF25abawltx ALIg120125 - ALIg120137, ALIg120170 - ALIg120175 Clear skies, and the seeing was oscillating between 0.8" and 1.0". Observed

70-501 2025-07-13 01:37 SoftToO ZTF25aayelvu, ZTF25abawltx ALIg130216 - ALIg130222, ALIg130230 - ALIg130235 Observed with clear skies and subarc seeing. First attempt to observe ZTF25abawltx aborted due to telescope safety system error. ZTF25aacqi not observed due to early night being overbooked. Observed

70-501 2025-07-17 00:53 SoftToO ZTF25aaxegmh ALIg170373 - ALIg170379 Observed with subarcsec seeing Observed

70-501 2025-07-18 00:58 SoftToO SN2025jgq, ZTF24aatytqv ALIg180208 - ALIg180213, ALIg180413 - ALIg180418 Both targets observed with few thin clouds and approx. 1 arcsec. seeing. Observed

70-501 2025-07-20 01:07 SoftToO ZTF25aasjeza, ZTF24abymeet ALIg200093 - ALIg200107, ALIg200121 - ALIg200127 Both targets were observed under clear sky. For "ZTF25aasjeza" the seeing started around 1", but increased a lot during exposure to 2"-3". If the data is not useful, let us know. " ZTF24abymee" was observed with seeing 1"-1.3". Observed

70-501 2025-07-21 01:56 SoftToO ZTF25aasjeza, ZTF25abawltx, ZTF24aatytqv ALIg210059 - ALIg210068, ALIg210074 - ALIg210079, ALIg210089 - ALIg210094 Clear skies, and seeing was oscillating between 0.8" and 1.1". Observed

70-501 2025-07-22 00:48 SoftToO ZTF25aapsdaj ALIg220057 - ALIg220063 Clear skies, and the seeing was oscillating between 1.9" and 2.3". Observed

70-501 2025-07-23 01:33 SoftToO ZTF24abymeet, ZTF25abbgajq ALIg230069 - ALIg230086 Clear skies, and the seeing was oscillating between 0.6" and 1.2". Observed

70-501 2025-07-24 01:42 SoftToO ZTF24abzxalv, ZTF24abymeet ALIg240051 - ALIg240057, ALIg240063 - ALIg240069 Clear skies, and the seeing was oscillating between 0.8" and 1.1". Observed

70-501 2025-07-25 01:05 SoftToO ZTF24aatytqv ALIg250166 - ALIg250174 Observed with clear skies and approx. 1.2 arcsec. conditions. Observed

70-501 2025-07-26 00:00 SoftToO Failed

70-501 2025-07-28 00:58 SoftToO ZTF25aasjeza, ZTF25abbevau ALIg280042 - ALIg280044, ALIg280088 - ALIg280095 Observed with seeing around 1.0'' Observed

70-501 2025-08-01 01:59 SoftToO ZTF25aatnpin, ZTF24aatytqv ALIh010046 - ALIh010052, ALIh010112 - ALIh010119 Observed under a clear sky and seeing around 1". Observed

70-501 2025-08-02 02:20 SoftToO SN2023ixf, ZTF25aazhyde, ZTF24abymeet ALIh020049 - ALIh020063, ALIh020081 - ALIh020096 All targets observed with clear skies and good seeing. Observed

70-501 2025-08-06 00:37 SoftToO ZTF25abecbib ALIh060148 - ALIh060154 Observed under dusty, but clear skies and good seeing. Moon 90%. Observed

The above information is collected from the ToO/Mon reports that have been created by the observer.

Should any of the observations have been carried out using the OB system, you will find additional information HERE

Last modified: April 05 2025