ASTROSAT CZTI

Data Quality Report

Orbit 29364

Creation date: 2024-06-27T20:03:15.519233
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/AS1T03_279T01_9000004218_29364cztM0_level2.evt modeM0/AS1T03_279T01_9000004218_29364cztM0_level2_quad_clean.evt
Size (bytes)662,947,200105,364,800
Size632.2 MB 100.5 MB
Events in quadrant A3,513,838707,004
Events in quadrant B3,469,968721,397
Events in quadrant C7,106,118638,326
Events in quadrant D5,529,802652,126

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147022
B0145542
C0260042
D0209932

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6766520.768549%
B6767580.857101%
C6767114916.979459%
D67673815.630265%

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 7681 6767 11 11 0.14% 0.16%
B 7682 6768 12 12 0.16% 0.18%
C 7682 6768 243 243 3.16% 3.59%
D 7682 6768 271 271 3.53% 4.00%

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 0 13 217846 1292.08 828 810 168.0
A 14 235 97316 574.53 828 810 168.0
A 13 254 13506 75.58 828 810 168.0
B 5 172 71327 447.51 829 809 157.6
B 5 255 51244 320.06 829 809 157.6
B 0 190 24953 153.22 829 809 157.6
C 3 233 3783578 21310.73 755 762 177.5
C 14 238 219671 1233.24 755 762 177.5
C 14 254 143340 803.22 755 762 177.5
D 1 52 1036424 5458.58 786 766 189.7
D 7 80 388885 2045.64 786 766 189.7
D 12 227 305425 1605.75 786 766 189.7

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