ASTROSAT CZTI

Data Quality Report

Orbit 11798

Creation date: 2024-06-27T16:18:25.754195
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/AS1G08_058T09_9000001744_11798cztM0_level2.evt modeM0/AS1G08_058T09_9000001744_11798cztM0_level2_quad_clean.evt
Size (bytes)499,345,92063,826,560
Size476.2 MB 60.9 MB
Events in quadrant A3,487,092376,605
Events in quadrant B4,455,125365,287
Events in quadrant C3,127,924380,451
Events in quadrant D3,613,925359,151

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142913
B0172632
C0134572
D0149612

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64591121.734015%
B64593615.589100%
C6459520.805078%
D64591582.446199%

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 7560 6461 3 3 0.04% 0.05%
B 7560 6461 162 162 2.14% 2.51%
C 7560 6461 0 0 0.00% 0.00%
D 7560 6461 53 53 0.70% 0.82%

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 1 162 102257 609.37 817 799 166.5
A 8 15 98432 586.39 817 799 166.5
A 1 178 49095 290.07 817 799 166.5
B 4 239 529770 3430.01 810 792 154.2
B 3 64 429589 2780.42 810 792 154.2
B 11 51 160812 1037.61 810 792 154.2
C 1 3 16290 84.55 796 802 183.2
C 13 61 5849 27.55 796 802 183.2
C 14 234 5216 24.1 796 802 183.2
D 1 52 477346 2535.62 783 763 188.0
D 13 104 39591 206.58 783 763 188.0
D 9 85 38746 202.09 783 763 188.0

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