ASTROSAT CZTI

Data Quality Report

Orbit 24988

Creation date: 2024-06-27T19:12:40.656737
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/AS1C05_013T04_9000003660_24988cztM0_level2.evt modeM0/AS1C05_013T04_9000003660_24988cztM0_level2_quad_clean.evt
Size (bytes)409,135,680112,129,920
Size390.2 MB 106.9 MB
Events in quadrant A2,782,346760,211
Events in quadrant B2,845,866773,166
Events in quadrant C3,020,881731,885
Events in quadrant D3,334,202712,638

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123731
B0124681
C0127311
D0138371

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59801883.143813%
B59811692.825614%
C59811592.658418%
D59811993.327203%

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 6000 5981 0 0 0.00% 0.00%
B 6001 5982 0 0 0.00% 0.00%
C 6001 5982 0 0 0.00% 0.00%
D 6001 5982 20 20 0.33% 0.33%

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 9734 62.19 719 702 145.2
A 6 16 8120 51.07 719 702 145.2
A 3 137 6714 41.39 719 702 145.2
B 0 190 19180 134.78 714 695 137.1
B 12 111 16877 117.99 714 695 137.1
B 11 111 15300 106.49 714 695 137.1
C 7 247 226618 1416.51 683 685 159.5
C 14 238 108644 676.86 683 685 159.5
C 3 233 22518 136.88 683 685 159.5
D 1 52 274634 1626.32 693 669 168.5
D 7 238 188152 1112.94 693 669 168.5
D 8 195 126002 744.0 693 669 168.5

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