ASTROSAT CZTI

Data Quality Report

Orbit 29075

Creation date: 2024-06-27T19:59:59.629842
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_097T04_9000004170_29075cztM0_level2.evt modeM0/AS1A10_097T04_9000004170_29075cztM0_level2_quad_clean.evt
Size (bytes)232,801,92025,421,760
Size222.0 MB 24.2 MB
Events in quadrant A1,506,334137,585
Events in quadrant B1,557,720139,610
Events in quadrant C1,549,609134,745
Events in quadrant D2,218,623130,732

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065121
B065881
C066011
D089091

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3184100.314070%
B3185110.345369%
C3185361.130298%
D3185662.072214%

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 3184 3184 0 0 0.00% 0.00%
B 3185 3185 0 0 0.00% 0.00%
C 3185 3185 0 0 0.00% 0.00%
D 3185 3185 45 45 1.41% 1.41%

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 4611 52.84 389 381 80.1
A 3 137 3978 44.93 389 381 80.1
A 0 226 3293 36.37 389 381 80.1
B 0 190 18870 244.17 386 376 75.7
B 10 246 13772 176.86 386 376 75.7
B 12 111 9370 118.74 386 376 75.7
C 14 238 61584 692.46 374 375 88.4
C 2 16 10080 109.79 374 375 88.4
C 10 22 9084 98.53 374 375 88.4
D 8 195 324286 3551.69 373 363 91.2
D 1 52 291715 3194.56 373 363 91.2
D 7 80 127693 1396.13 373 363 91.2

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