ASTROSAT CZTI

Data Quality Report

Orbit 29017

Creation date: 2024-06-27T19:59:13.407806
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_103T04_9000004158_29017cztM0_level2.evt modeM0/AS1A10_103T04_9000004158_29017cztM0_level2_quad_clean.evt
Size (bytes)238,129,92042,802,560
Size227.1 MB 40.8 MB
Events in quadrant A1,629,470274,813
Events in quadrant B1,654,358276,176
Events in quadrant C1,626,817256,632
Events in quadrant D2,071,783250,509

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069081
B069901
C069251
D082701

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3351712.118771%
B3352692.058473%
C3352752.237470%
D3352682.028640%

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 4131 3352 0 0 0.00% 0.00%
B 4132 3353 1 1 0.02% 0.03%
C 4132 3353 0 0 0.00% 0.00%
D 4132 3353 22 22 0.53% 0.66%

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 6 16 9069 101.53 418 409 85.3
A 13 254 5902 64.4 418 409 85.3
A 3 137 4221 44.69 418 409 85.3
B 10 246 27224 333.18 411 399 80.5
B 12 111 9849 117.37 411 399 80.5
B 11 111 9363 111.34 411 399 80.5
C 14 238 63446 671.97 395 396 93.8
C 3 233 10612 108.88 395 396 93.8
C 2 114 7996 81.0 395 396 93.8
D 8 195 261471 2732.69 401 390 95.5
D 1 52 170284 1778.25 401 390 95.5
D 7 80 73003 760.03 401 390 95.5

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