ASTROSAT CZTI

Data Quality Report

Orbit 33070

Creation date: 2024-06-27T20:44:38.275348
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/AS1A11_007T07_9000004758_33070cztM0_level2.evt modeM0/AS1A11_007T07_9000004758_33070cztM0_level2_quad_clean.evt
Size (bytes)967,777,920104,688,000
Size922.9 MB 99.8 MB
Events in quadrant A3,758,518728,330
Events in quadrant B5,754,337693,635
Events in quadrant C4,973,993716,014
Events in quadrant D14,271,761463,110

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163863
B0221052
C0199862
D0482022

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A816340.049002%
B81636307.717751%
C81632493.050349%
D8163363144.481196%

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 11119 8165 0 0 0.00% 0.00%
B 11119 8165 442 442 3.98% 5.41%
C 11119 8165 189 189 1.70% 2.31%
D 11119 8165 3540 3540 31.84% 43.36%

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 15439 74.33 969 950 194.9
A 3 137 9177 42.2 969 950 194.9
A 0 226 8436 38.4 969 950 194.9
B 5 172 1823392 10105.18 936 911 180.4
B 0 189 75854 415.54 936 911 180.4
B 15 85 47607 258.92 936 911 180.4
C 8 111 742482 3411.93 935 942 217.3
C 0 207 208549 955.23 935 942 217.3
C 0 10 162417 742.97 935 942 217.3
D 7 223 8091853 40134.67 762 746 201.6
D 8 195 1165350 5776.84 762 746 201.6
D 12 218 954598 4731.43 762 746 201.6

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