ASTROSAT CZTI

Data Quality Report

Orbit 34002

Creation date: 2024-06-27T20:55:14.508616
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_106T03_9000004864_34002cztM0_level2.evt modeM0/AS1A11_106T03_9000004864_34002cztM0_level2_quad_clean.evt
Size (bytes)454,731,84068,947,200
Size433.7 MB 65.8 MB
Events in quadrant A2,425,730456,712
Events in quadrant B2,927,309456,453
Events in quadrant C3,494,032427,521
Events in quadrant D4,603,436414,252

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A097082
B0115321
C0136201
D0169901

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A473860.126636%
B4738571.203039%
C47381994.200084%
D47383186.711693%

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 6831 4739 0 0 0.00% 0.00%
B 6831 4739 31 31 0.45% 0.65%
C 6831 4739 172 172 2.52% 3.63%
D 6831 4739 268 268 3.92% 5.66%

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 13 6 15943 123.8 621 610 123.8
A 10 83 10176 77.24 621 610 123.8
A 13 254 7480 55.47 621 610 123.8
B 5 172 171925 1514.88 603 589 113.1
B 5 31 74468 653.21 603 589 113.1
B 5 15 68973 604.62 603 589 113.1
C 3 233 295427 2264.24 572 577 130.2
C 4 254 260451 1995.65 572 577 130.2
C 15 214 202797 1552.91 572 577 130.2
D 8 195 1418296 9170.92 574 563 154.6
D 13 249 376432 2431.39 574 563 154.6
D 12 6 131799 848.93 574 563 154.6

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