ASTROSAT CZTI

Data Quality Report

Orbit 28053

Creation date: 2024-06-27T19:47:31.937087
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_057T02_9000004054_28053cztM0_level2.evt modeM0/AS1A10_057T02_9000004054_28053cztM0_level2_quad_clean.evt
Size (bytes)148,452,48012,130,560
Size141.6 MB 11.6 MB
Events in quadrant A997,14962,509
Events in quadrant B957,15463,844
Events in quadrant C971,89460,404
Events in quadrant D1,455,82258,854

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041260
B038470
C039440
D055200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1638120.732601%
B1638150.915751%
C1638321.953602%
D1638643.907204%

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 1638 1638 0 0 0.00% 0.00%
B 1638 1638 0 0 0.00% 0.00%
C 1638 1638 0 0 0.00% 0.00%
D 1638 1638 55 55 3.36% 3.36%

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 0 13 49118 982.33 245 240 49.8
A 13 254 2824 51.93 245 240 49.8
A 8 192 2778 51.01 245 240 49.8
B 0 156 12983 278.11 238 233 45.8
B 12 111 5219 108.76 238 233 45.8
B 11 111 4663 96.63 238 233 45.8
C 3 233 40788 749.1 228 230 54.1
C 14 238 38401 705.01 228 230 54.1
C 13 61 1534 24.08 228 230 54.1
D 8 195 377335 6804.73 231 226 55.4
D 1 52 158815 2861.65 231 226 55.4
D 2 250 29137 521.68 231 226 55.4

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