ASTROSAT CZTI

Data Quality Report

Orbit 32122

Creation date: 2024-06-27T20:36:43.355104
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/AS1T04_051T01_9000004686_32122cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32122cztM0_level2_quad_clean.evt
Size (bytes)589,178,88098,936,640
Size561.9 MB 94.4 MB
Events in quadrant A3,342,926652,863
Events in quadrant B6,031,482631,165
Events in quadrant C3,710,635645,391
Events in quadrant D4,330,014624,868

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134101
B0220331
C0147682
D0172281

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63271241.959855%
B63284537.158660%
C63272724.299036%
D63281642.591656%

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 7447 6328 0 0 0.00% 0.00%
B 7448 6329 128 128 1.72% 2.02%
C 7448 6329 44 44 0.59% 0.70%
D 7448 6329 43 43 0.58% 0.68%

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 6 13846 76.95 863 848 168.9
A 13 254 11990 65.97 863 848 168.9
A 3 137 7981 42.23 863 848 168.9
B 6 159 1660835 10624.61 837 819 156.2
B 12 18 461590 2949.07 837 819 156.2
B 10 245 418416 2672.75 837 819 156.2
C 0 10 305514 1608.13 826 833 189.5
C 14 238 142172 746.0 826 833 189.5
C 2 114 14579 72.55 826 833 189.5
D 8 195 908081 4655.92 841 820 194.9
D 12 233 193608 989.36 841 820 194.9
D 2 234 29105 145.15 841 820 194.9

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