ASTROSAT CZTI

Data Quality Report

Orbit 45534

Creation date: 2024-06-27T23:13:20.194153
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/AS1A13_071T01_9000006104_45534cztM0_level2.fits modeM0/AS1A13_071T01_9000006104_45534cztM0_level2_quad_clean.evt
Size (bytes)505,010,880106,738,560
Size481.6 MB 101.8 MB
Events in quadrant A5,991,561714,227
Events in quadrant B3,225,017757,803
Events in quadrant C3,010,378713,140
Events in quadrant D5,958,783590,396

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225522
B0142022
C0139012
D0224142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65512573.923065%
B6551751.144863%
C6550370.564885%
D655073411.206107%

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 7581 6552 69 69 0.91% 1.05%
B 7581 6552 35 35 0.46% 0.53%
C 7580 6551 12 12 0.16% 0.18%
D 7580 6551 529 529 6.98% 8.08%

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 2654884 17822.91 722 707 148.9
A 13 248 528800 3546.17 722 707 148.9
A 2 79 15426 98.84 722 707 148.9
B 5 172 119058 834.31 731 707 141.9
B 10 3 68556 478.3 731 707 141.9
B 0 155 63226 440.72 731 707 141.9
C 12 2 162197 965.0 710 714 167.3
C 14 254 44699 262.85 710 714 167.3
C 10 187 30692 179.14 710 714 167.3
D 13 249 1191829 7054.73 671 649 168.8
D 1 52 1027238 6079.95 671 649 168.8
D 5 171 511790 3027.22 671 649 168.8

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