ASTROSAT CZTI

Data Quality Report

Orbit 34072

Creation date: 2024-06-27T20:56:12.309905
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/AS1C07_001T04_9000004868_34072cztM0_level2.evt modeM0/AS1C07_001T04_9000004868_34072cztM0_level2_quad_clean.evt
Size (bytes)492,629,760105,517,440
Size469.8 MB 100.6 MB
Events in quadrant A2,481,105722,347
Events in quadrant B3,210,166732,744
Events in quadrant C4,184,204700,406
Events in quadrant D4,673,631657,971

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110503
B0131102
C0160552
D0176452

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A546260.109850%
B5462931.702673%
C54623005.492494%
D54623396.206518%

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 7286 5463 0 0 0.00% 0.00%
B 7286 5463 59 59 0.81% 1.08%
C 7286 5463 287 287 3.94% 5.25%
D 7286 5463 319 319 4.38% 5.84%

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 10 83 19216 147.15 632 620 126.4
A 15 169 12359 92.89 632 620 126.4
A 13 254 9241 68.22 632 620 126.4
B 5 172 378102 3153.13 632 615 119.7
B 0 189 144276 1199.99 632 615 119.7
B 0 219 48205 397.52 632 615 119.7
C 0 207 772707 5603.44 604 609 137.8
C 0 10 399648 2896.0 604 609 137.8
C 15 214 234734 1699.14 604 609 137.8
D 8 195 1105543 7620.86 596 581 145.0
D 2 250 475262 3273.85 596 581 145.0
D 10 118 364411 2509.31 596 581 145.0

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