ASTROSAT CZTI

Data Quality Report

Orbit 13078

Creation date: 2024-06-27T16:36:01.113129
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/AS1A04_067T01_9000001926_13078cztM0_level2.evt modeM0/AS1A04_067T01_9000001926_13078cztM0_level2_quad_clean.evt
Size (bytes)37,520,6408,709,120
Size35.8 MB 8.3 MB
Events in quadrant A313,70155,003
Events in quadrant B317,27756,356
Events in quadrant C199,35857,027
Events in quadrant D271,05754,483

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012231
B012430
C09330
D011290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A466265.579399%
B466143.004292%
C46600.000000%
D46610.214592%

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 467 467 17 17 3.64% 3.64%
B 467 467 11 11 2.36% 2.36%
C 467 467 0 0 0.00% 0.00%
D 467 467 4 4 0.86% 0.86%

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 57149 4518.01 51 50 12.6
A 15 239 27843 2199.14 51 50 12.6
A 8 15 15706 1238.79 51 50 12.6
B 4 239 102029 7971.58 52 51 12.8
B 0 85 10251 797.33 52 51 12.8
B 12 111 1213 90.83 52 51 12.8
C 15 208 680 45.25 50 50 13.9
C 13 61 403 25.35 50 50 13.9
C 8 222 206 11.21 50 50 13.9
D 1 52 71059 5135.94 49 48 13.8
D 10 157 11466 825.82 49 48 13.8
D 2 234 1961 138.36 49 48 13.8

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