ASTROSAT CZTI

Data Quality Report

Orbit 30377

Creation date: 2024-06-27T20:14:26.023939
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_053T17_9000004366_30377cztM0_level2.evt modeM0/AS1A10_053T17_9000004366_30377cztM0_level2_quad_clean.evt
Size (bytes)148,728,96025,312,320
Size141.8 MB 24.1 MB
Events in quadrant A892,924164,271
Events in quadrant B1,403,200163,038
Events in quadrant C1,103,998154,082
Events in quadrant D980,706154,069

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037191
B053541
C044761
D040161

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1779130.730748%
B1779231.292861%
C1779412.304666%
D1779462.585722%

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 1779 1779 0 0 0.00% 0.00%
B 1779 1779 0 0 0.00% 0.00%
C 1779 1779 0 0 0.00% 0.00%
D 1779 1779 40 40 2.25% 2.25%

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 14393 305.29 224 220 46.4
A 8 192 13409 284.09 224 220 46.4
A 13 254 3606 72.93 224 220 46.4
B 6 159 511143 11230.63 226 220 45.5
B 12 111 5567 117.53 226 220 45.5
B 11 111 4991 104.87 226 220 45.5
C 3 233 203888 3865.88 218 219 52.7
C 14 238 35039 660.93 218 219 52.7
C 0 10 9694 179.85 218 219 52.7
D 13 168 103289 1941.03 215 210 53.1
D 8 195 36417 681.8 215 210 53.1
D 1 52 10117 186.55 215 210 53.1

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