ASTROSAT CZTI

Data Quality Report

Orbit 01198

Creation date: 2024-06-27T14:09:00.217665
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/AS1G04_007T02_9000000220_01198cztM0_level2.evt modeM0/AS1G04_007T02_9000000220_01198cztM0_level2_quad_clean.evt
Size (bytes)1,071,843,840106,943,040
Size1022.2 MB 102.0 MB
Events in quadrant A7,808,948703,763
Events in quadrant B8,366,621698,359
Events in quadrant C8,077,720684,719
Events in quadrant D7,754,605676,264

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280673
B0296952
C0288572
D0279092

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A682450.073271%
B6824130.190504%
C6824130.190504%
D6824410.600821%

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 8888 6823 154 154 1.73% 2.26%
B 8889 6824 249 249 2.80% 3.65%
C 8888 6823 195 195 2.19% 2.86%
D 8889 6824 304 304 3.42% 4.45%

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 4 32 17182 31.21 2029 2042 485.1
A 11 79 8486 13.28 2029 2042 485.1
A 3 111 6641 9.48 2029 2042 485.1
B 6 53 58071 111.03 2157 2168 503.5
B 0 190 27293 49.9 2157 2168 503.5
B 5 191 21729 38.85 2157 2168 503.5
C 15 241 374821 682.52 1955 2022 546.2
C 3 111 22123 36.8 1955 2022 546.2
C 9 83 19847 32.63 1955 2022 546.2
D 1 239 265972 466.48 1852 1915 566.1
D 2 16 187322 327.54 1852 1915 566.1
D 12 22 173161 302.52 1852 1915 566.1

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