Observations
| Slot No | Filter | Size | 
| 1. | S-II | 80mm | 
| 2. | Hα | 80mm | 
| 3. | U | 80mm | 
| 4. | B | 80mm | 
| 5. | V | 80mm | 
| 6. | R | 80mm | 
| 7. | I | 80mm | 
| 8. | r (sdss) | 80mm | 
Currently, broad-band (UBVRI), (u,g,r,i,z) and narrowband interference filters for O[III], S[II], and H-alpha line filters are available.
General Instruction
- Don't clean any optical surface ( strictly prohibited ).
 - Observers are not allowed to repair or modify the Telescope and its default settings/instruments/software's and the position of the filters.
 - Keep in mind the limits of the Telescope (at most 4 hours from the Zenith).
 - If your have specific requirements related to the filters, please inform us one week before your observation.[ saurabh@aries.res.in and shekhar@aries.res.in ]
 - Bring pen drive/hard-disk/blank DVD/CD for copying your data and Please DO NOT delete any file from the data server.
 - You can see the 1.3m Observatory live weather conditions at Weather Conditions and Live Sky
 - For reducing your data, a computer with SCISOFT installed on it is available at observatory building.
 - Observatory vehicle is for official uses only.
 - Please bring your objects name, RA DEC & Image's soft copy and hard copy both to the observatory .
 - Please book your meals in advance. The nearest restaurant/shops is 8km away from the observatory and observatory is not going to provide vehicle for that.
 - All science publications from 1.3m DFOT should have acknowledgment: :"We would like to thanks the scientific staff and observing assistance team at 1.3m DFOT, Devasthal, ARIES Nainital for their kind help and support during the observing run" .
 - Feel free to contact Dr. Saurabh ( saurabh@aries.res.in ) for any query regarding to 1.3m Telescope.
 - If any observer wants to come Devasthal Observatory form Haldwani by thier own vehical/taxi * [ Route: Haldawani-(5 km) - Kathgodam -(20 km)- Bheemtal -( 4 km )- Khutani ( 27km )- Dhanchuli Bend -(4 km) - Jarapani Market - (1.15 km) - ARIES Devasthal {Madakini Guest House} - ( 1.6 km ) - 1.3m DFOT Observatory ]
 
Before Observation!
- Before opening dome make sure that
	
- * Telescope is parked at zenith.
 - * Mirror is closed.
 - *Weather condition is perfect (no clouds in the sky + relative humidity is lower than 80 percentage).
 
 - Switch off all the lights and heat producing equipment in building.
 - Before the start of observations, please make your object list according your preference / RA DEC in the TCS PC.
 - Check the end/start of twilight time, sun/moon set/ rise time and moon phase before your observation, and all information are available in Sky6 software (Telescope PC)
 - Turn on CCD + cool it down to -80 degrees, one hour before the flat time and check the filter motions.
 
During Observation
- Don't bring any eatable material in the TCS room, only drinking water you can carry.
 - Use of air dryer/heat convectors are strictly prohibited in the telescope building.
 - All observers are requested to fill online observation log during their observing run or as per their suitability but before 08:00am Online Observation log.
 - Keep an eye on the All-sky camera, humidity, temp, wind speed and weather during observations Weather Conditions and Live Sky .
 - Don't forget to take BIAS during the observations.
 
After Observation
- Copy your data( best time to start copying is in between the end of observation and the flat observing time ).
 - Check CCD is properly reset to the room temperature & shutdown or not.
 - Check mirror flap.
 - Switch off filter unit at first slot position.
 - Park Telescope at Zenith.
 - Close dome properly.
 - Shut down TCS PC.
 - Put all waste material in to dust bin.
 - After the end of observations, please fill the online feed back form, your feedback is very important for the observatory to improve its facility. Online Feedback Form
 - Good Morning & go to sleep.
 
Before leaving observatory
- Please pay mess/canteen bill in time.
 - For cleaning related issues please fill the form Cleaning Related issue-1.3m DFOT
 - You can also inform verbally to the staff members of Devsthal about the problems you have faced during observations.
 - Be sure that your data is being copied by you.
 - Throw away food or waste material in dust bin and wash the dishes you have used.
 - Leave your bedroom tidy.
 - Please confirm before leaving that the bedroom windows are closed, geyser/heater are switched off and the water taps are tightened.
 - Look around to be sure that you haven't forgotten anything!
 
Thank You
1.3m DFOT Team
        
    