ASTROSAT CZTI

Data Quality Report

Orbit 20200801_C05_007T01_9000003786_level2

Creation date: 2025-12-14T03:50:07.328467
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/AS1C05_007T01_9000003786cztM0_level2.fits modeM0/AS1C05_007T01_9000003786cztM0_level2_quad_clean.evt
Size (bytes)704,177,280508,435,200
Size671.6 MB 484.9 MB
Events in quadrant A4,463,5362,857,086
Events in quadrant B4,238,8262,824,098
Events in quadrant C4,253,4802,646,219
Events in quadrant D3,715,2942,412,340

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01455330
B01460010
C01500410
D01794750

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013820
B013820
C013820
D013820

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A678839461.393574%
B6788311591.707349%
C6788315542.289233%
D6788322113.257075%

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 79643 67880 0 0 0.00% 0.00%
B 79643 67872 0 0 0.00% 0.00%
C 79642 67875 0 0 0.00% 0.00%
D 79643 67859 0 0 0.00% 0.00%

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 29 3718 9.26 1162 1093 283.5
A 7 110 3464 8.36 1162 1093 283.5
A 0 30 3326 7.88 1162 1093 283.5
B 2 9 3360 10.38 1120 1071 220.5
B 5 128 2777 7.74 1120 1071 220.5
B 5 225 2772 7.72 1120 1071 220.5
C 12 241 2956 6.72 1123 1051 283.3
C 3 126 2917 6.59 1123 1051 283.3
C 12 250 2858 6.38 1123 1051 283.3
D 10 189 2634 5.93 1062 968 280.9
D 15 46 2618 5.87 1062 968 280.9
D 6 231 2566 5.69 1062 968 280.9

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