ASTROSAT CZTI

Data Quality Report

Orbit 30798

Creation date: 2024-06-27T20:19:45.151927
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_071T25_9000004450_30798cztM0_level2.evt modeM0/AS1A10_071T25_9000004450_30798cztM0_level2_quad_clean.evt
Size (bytes)663,272,64094,075,200
Size632.5 MB 89.7 MB
Events in quadrant A3,217,969620,352
Events in quadrant B5,154,832619,478
Events in quadrant C4,014,734584,540
Events in quadrant D7,244,394554,166

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138732
B0203622
C0161292
D0262332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6747510.755892%
B6748881.304090%
C67471602.371424%
D67476599.767304%

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 8613 6748 0 0 0.00% 0.00%
B 8614 6749 2 2 0.02% 0.03%
C 8613 6748 35 35 0.41% 0.52%
D 8613 6749 567 567 6.58% 8.40%

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 12165 67.24 833 816 168.8
A 3 137 8483 45.42 833 816 168.8
A 0 226 6875 35.9 833 816 168.8
B 6 159 1858796 11638.08 824 804 159.6
B 12 111 19588 117.66 824 804 159.6
B 11 111 18058 108.08 824 804 159.6
C 3 233 654623 3466.45 792 797 188.6
C 0 10 133485 703.48 792 797 188.6
C 14 238 125438 660.82 792 797 188.6
D 8 195 4230063 21008.4 779 761 201.3
D 2 250 33968 164.95 779 761 201.3
D 2 234 29654 143.52 779 761 201.3

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