ASTROSAT CZTI

Data Quality Report

Orbit 25103

Creation date: 2024-06-27T19:13:52.314988
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/AS1T03_206T01_9000003672_25103cztM0_level2.evt modeM0/AS1T03_206T01_9000003672_25103cztM0_level2_quad_clean.evt
Size (bytes)415,823,04058,199,040
Size396.6 MB 55.5 MB
Events in quadrant A2,358,109368,834
Events in quadrant B2,502,214375,276
Events in quadrant C2,373,683353,218
Events in quadrant D5,016,710311,098

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102200
B0105370
C0102410
D0183340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5041170.337235%
B5041280.555445%
C5041320.634795%
D504164412.775243%

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 5041 5041 0 0 0.00% 0.00%
B 5041 5041 0 0 0.00% 0.00%
C 5041 5041 0 0 0.00% 0.00%
D 5041 5041 568 568 11.27% 11.27%

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 8464 63.77 609 595 123.4
A 3 137 5551 40.16 609 595 123.4
A 0 226 5247 37.7 609 595 123.4
B 0 229 39898 337.5 607 592 116.5
B 0 190 34613 292.12 607 592 116.5
B 0 189 34361 289.95 607 592 116.5
C 14 238 92760 668.66 580 584 137.9
C 0 207 6722 44.53 580 584 137.9
C 2 16 5176 33.31 580 584 137.9
D 12 33 1188686 8512.33 563 546 139.6
D 1 52 708599 5072.79 563 546 139.6
D 7 223 519366 3717.04 563 546 139.6

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