ASTROSAT CZTI

Data Quality Report

Orbit 29730

Creation date: 2024-06-27T20:07:12.670187
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_007T01_9000004276_29730cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29730cztM0_level2_quad_clean.evt
Size (bytes)1,204,136,640128,197,440
Size1.1 GB 122.3 MB
Events in quadrant A5,492,076821,380
Events in quadrant B8,959,737821,954
Events in quadrant C9,109,360787,852
Events in quadrant D12,200,098722,592

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02140
B02140
C02140
D02140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230702
B0336812
C0343512
D0435792

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A105171010.960350%
B105182412.291310%
C10518106110.087469%
D10518143013.595741%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 12957 10517 0 0 0.00% 0.00%
B 12958 10518 15 15 0.12% 0.14%
C 12958 10518 331 331 2.55% 3.15%
D 12958 10518 1149 1149 8.87% 10.92%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 12 16 27525 94.0 1415 1393 278.0
A 13 254 19864 66.44 1415 1393 278.0
A 12 194 14393 46.76 1415 1393 278.0
B 6 159 3126038 11884.02 1402 1370 262.9
B 0 229 216430 817.93 1402 1370 262.9
B 0 190 57669 214.12 1402 1370 262.9
C 3 233 3398551 11216.0 1322 1338 302.9
C 14 238 231020 758.3 1322 1338 302.9
C 10 22 191950 629.31 1322 1338 302.9
D 8 195 3743112 12330.33 1298 1269 303.5
D 7 238 1894225 6237.78 1298 1269 303.5
D 7 80 833062 2740.97 1298 1269 303.5

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter