ASTROSAT CZTI

Data Quality Report

Orbit 20583

Creation date: 2024-06-27T18:17:05.883934
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/AS1A06_003T04_9000003046_20583cztM0_level2.evt modeM0/AS1A06_003T04_9000003046_20583cztM0_level2_quad_clean.evt
Size (bytes)528,874,56074,905,920
Size504.4 MB 71.4 MB
Events in quadrant A3,415,475465,960
Events in quadrant B3,711,690470,802
Events in quadrant C3,482,763454,646
Events in quadrant D4,985,159442,052

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142642
B0151422
C0144272
D0192423

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6229620.995344%
B62291292.070958%
C62291131.814095%
D62284697.530507%

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 7609 6230 1 1 0.01% 0.02%
B 7609 6230 25 25 0.33% 0.40%
C 7609 6230 0 0 0.00% 0.00%
D 7608 6229 298 298 3.92% 4.78%

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 96 15442 83.5 881 867 174.5
A 0 226 7828 39.88 881 867 174.5
A 12 194 6518 32.38 881 867 174.5
B 7 220 113112 695.93 875 857 161.3
B 0 197 52224 318.45 875 857 161.3
B 0 189 42951 260.96 875 857 161.3
C 14 238 135577 688.97 853 864 195.5
C 8 208 14362 69.03 853 864 195.5
C 3 233 6669 29.69 853 864 195.5
D 5 222 865983 4242.45 847 826 203.9
D 13 104 414274 2027.42 847 826 203.9
D 13 153 160650 783.73 847 826 203.9

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