ASTROSAT CZTI

Data Quality Report

Orbit 09214

Creation date: 2024-06-27T15:42:45.837400
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/AS1C02_042T02_9000001284_09214cztM0_level2.evt modeM0/AS1C02_042T02_9000001284_09214cztM0_level2_quad_clean.evt
Size (bytes)200,603,52048,349,440
Size191.3 MB 46.1 MB
Events in quadrant A1,610,404313,278
Events in quadrant B1,400,191318,487
Events in quadrant C1,438,290311,413
Events in quadrant D1,416,712303,273

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0624
B0620
C0620
D0622

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06694112
B0630887
C0647381
D0649486

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A304650.164150%
B305400.000000%
C305630.098168%
D305660.196335%

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 3096 3093 0 0 0.00% 0.00%
B 3096 3096 0 0 0.00% 0.00%
C 3096 3096 3 3 0.10% 0.10%
D 3096 3095 7 7 0.23% 0.23%

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 8 5 160691 2235.84 345 338 71.7
A 13 251 49541 686.05 345 338 71.7
A 1 162 42379 586.19 345 338 71.7
B 8 234 23999 348.56 343 335 67.9
B 0 214 17686 255.57 343 335 67.9
B 0 230 11582 165.66 343 335 67.9
C 3 233 141500 1813.96 332 333 77.8
C 13 61 2588 28.98 332 333 77.8
C 12 4 921 7.56 332 333 77.8
D 1 52 98918 1130.52 335 326 87.2
D 2 234 16999 191.18 335 326 87.2
D 12 233 11108 123.63 335 326 87.2

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