Erzurum DAG Campus

This is our campus where the institution's administrative and coordination activities are carried out,
and which is the central location of the support units.

The Erzurum DAG Campus is located southwest of the center of Erzurum, on the Karakaya Hills of Mount Palandöken, at an altitude of 3170 meters. The campus is situated on the summit of the Karakaya Hills near the Konaklı Ski Center.

Location

Campus	Latitude	Longitude	Altitude
Erzurum DAG Campus	39° 46' 43" N	41° 13' 37" E	3170 m

Transportation

Route	Distance	Road Condition	Travel Time
Erzurum - Konaklı Ski Center	27 km	Highway	25 Minutes
Konaklı Ski Center - DAG	8 km	Mountain road	10 Minutes

Meteorological Conditions

The data were measured with a Vaisala sensor during the period 2022–09.06.2025; deviations beyond ±2σ and empty/NaN data were filtered out.

Parameter	Average	Minimum	Maximum
Temperature (°C)	3	-26	25
Humidity (%)	63	1	100
Pressure (hPA)	521	507	692
Wind Speed (m/s)	6	1	25
Prevailing Wind Direction	South-Southwest (202°)	South-Southwest (202°)	South-Southwest (202°)
Snow Level (m)	3.5	0	7
Average Snow Duration	7 months	7 months	7 months

The weather within the campus is monitored via meteorological stations positioned at the telescope buildings. In addition, the general campus weather data can be monitored remotely via a web-based kiosk screen, and whether the sky is clear or overcast can be observed in real time with a sky camera.

Observational Quality Data

Parameter	DAG Campus	Observatory Average
Sky Background Brightness (Magnitude/Arcsecond²)	21.4 – 21.8	21.4 – 21.8
Astronomical Seeing (Arcsecond)	0.93	0.6 – 1.0
Number of Clear Nights (Night/Year)	240	200 – 300

Buildings and Facilities

Building	Contents
Telescope Building	Telescope with a 4-meter aperture Focal Plane Instruments Climate Control Systems Electrical, electronic and control cabinets
Service Building	Control room Mirror coating unit System room Mechanical installation room Precision air conditioning units Meeting room Gym 6 double staff bedrooms
HVAC Building	3 air handling units (36,000 m³/hour) 90 kW outdoor chiller 2x 27 kW chiller (Annex building) Fresh air dryer (4,000 m³/hour) Liquid cooling collector line Circulation pumps Automation panels Power distribution panels
Energy Building	SCADA system Transformer and generator systems 3.5 KM redundant line monitoring Garage 10-ton fuel tank
Security Building	24/7 security service Entry-exit control Camera control screens Radio systems Visitor registration system Emergency response equipment

Observatory Infrastructure Status

Parameter	Value
Number of Locations	18
Indoor Area	4966 m²
Contracted Installed Electrical Power	1200 kVA
Generator	2x 450 kVA diesel – 1x 20 kVA diesel – 1x 5 kVA gasoline
UPS	25 units (at various power ratings)
Internet Speed	1000 Mbit (Fiber Connection)
Water Capacity	77 tons

Observatory Campus Indoor Areas

The total indoor area of the actively used buildings, consisting of 18 locations within the Erzurum DAG Campus, is approximately 4970 m². The approximate indoor area details of the locations within the campus are presented in the table below.

Building Name	Building Location	Area (m²)
DAG Service Building	Karakaya Hills/Mount Palandöken / ERZURUM	3000
HVAC Building	Karakaya Hills/Mount Palandöken / ERZURUM	160
Energy Building	Konaklı Ski Center/Mount Palandöken / ERZURUM	320
Security Building	Konaklı Ski Center/Mount Palandöken / ERZURUM	155
Warehouse Building	Karakaya Hills/Mount Palandöken / ERZURUM	500
Water Reservoir	Karakaya Hills/Mount Palandöken / ERZURUM	110
Mirya Station	Karakaya Hills/Mount Palandöken / ERZURUM	30
Atatürk University Earthquake Research Center Station	Karakaya Hills/Mount Palandöken / ERZURUM	3
Work Office Containers	Karakaya Hills/Mount Palandöken / ERZURUM	40
Material Containers	Karakaya Hills/Mount Palandöken / ERZURUM	225
TM 2 – TM 3 (Transformer Centers) and UPS Kiosks	Karakaya Hills/Mount Palandöken / ERZURUM	120
Yakud Building	Karakaya Hills/Mount Palandöken / ERZURUM	21
Intermediate Station	Karakaya Hills/Mount Palandöken / ERZURUM	15
GRAND TOTAL		4,699

Electrical Infrastructure

Parameter	Value
Contracted Installed Electrical Power	1200 kVA
Generator	2 Diesel Generators (450 kVA) - 1 Diesel Generator (25 kVA) – 1 Gasoline Generator (7.5 kVA)
UPS	25 units (at various power ratings)

Water Infrastructure and Supply

Parameter	Value
Water Capacity	77 tons (Modular water tanks)

Climate Control Systems

Parameter	Value
Climate Control System	Active - Passive Solar Energy Heating System
Lowest Indoor Temperature	-7.5 °C