ASTROSAT CZTI

Data Quality Report

Orbit 28265

Creation date: 2024-06-27T19:49:49.147845
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_067T01_9000004076_28265cztM0_level2.evt modeM0/AS1A10_067T01_9000004076_28265cztM0_level2_quad_clean.evt
Size (bytes)622,537,92089,210,880
Size593.7 MB 85.1 MB
Events in quadrant A3,277,834591,388
Events in quadrant B3,460,692592,277
Events in quadrant C3,432,527565,307
Events in quadrant D8,230,234486,791

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141170
B0146190
C0144900
D0290500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6674470.704225%
B6675931.393258%
C66751251.872659%
D6674172625.861552%

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 8704 6675 0 0 0.00% 0.00%
B 8705 6676 29 29 0.33% 0.43%
C 8705 6676 2 2 0.02% 0.03%
D 8704 6674 1541 1541 17.70% 23.09%

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 13 254 11204 60.63 848 832 171.1
A 3 137 8392 44.2 848 832 171.1
A 0 226 7042 36.3 848 832 171.1
B 10 245 105456 646.2 842 820 161.9
B 0 230 23198 138.2 842 820 161.9
B 10 246 22944 136.63 842 820 161.9
C 14 238 131255 680.93 814 819 191.6
C 3 233 60352 310.79 814 819 191.6
C 2 16 39763 203.3 814 819 191.6
D 1 52 5032943 29203.2 720 702 172.3
D 8 195 290350 1680.89 720 702 172.3
D 2 250 91014 524.1 720 702 172.3

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