ASTROSAT CZTI

Data Quality Report

Orbit 43807

Creation date: 2024-06-27T22:56:00.206381
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_018T01_9000005906_43807cztM0_level2.fits modeM0/AS1A13_018T01_9000005906_43807cztM0_level2_quad_clean.evt
Size (bytes)691,240,320109,575,360
Size659.2 MB 104.5 MB
Events in quadrant A5,695,696755,403
Events in quadrant B3,487,711867,192
Events in quadrant C8,487,714626,529
Events in quadrant D7,421,530623,352

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0217294
B0142662
C0295332
D0264342

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A638677112.073285%
B63871221.910130%
C6387189429.653985%
D6387128420.103335%

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 7616 6386 319 319 4.19% 5.00%
B 7617 6387 3 3 0.04% 0.05%
C 7617 6387 1675 1675 21.99% 26.23%
D 7617 6387 1085 1085 14.24% 16.99%

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 15 223 1503340 9159.25 797 782 164.0
A 10 83 941308 5733.23 797 782 164.0
A 13 248 89459 540.55 797 782 164.0
B 0 200 99693 617.82 828 807 160.1
B 0 183 41070 251.55 828 807 160.1
B 12 111 19542 117.05 828 807 160.1
C 15 174 5143502 31604.12 701 707 162.7
C 3 233 175690 1075.33 701 707 162.7
C 15 190 171386 1048.88 701 707 162.7
D 12 33 1603335 8567.04 754 734 187.1
D 7 204 1200251 6412.27 754 734 187.1
D 5 235 392852 2096.15 754 734 187.1

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