ASTROSAT CZTI

Data Quality Report

Orbit 03320

Creation date: 2024-06-27T14:27:33.536543
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/AS1G05_241T02_9000000448_03320cztM0_level2.evt modeM0/AS1G05_241T02_9000000448_03320cztM0_level2_quad_clean.evt
Size (bytes)602,760,96078,932,160
Size574.8 MB 75.3 MB
Events in quadrant A4,023,145455,827
Events in quadrant B5,458,325457,251
Events in quadrant C4,088,394464,041
Events in quadrant D4,131,135445,436

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178605
B0216234
C0178204
D0183834

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81524375.360648%
B81526678.182041%
C81522763.385672%
D81523484.268891%

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 8327 8156 15 15 0.18% 0.18%
B 8327 8156 108 108 1.30% 1.32%
C 8327 8156 8 8 0.10% 0.10%
D 8327 8156 57 57 0.68% 0.70%

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 50 110171 521.69 1002 976 209.3
A 0 118 44001 205.56 1002 976 209.3
A 0 226 14209 63.22 1002 976 209.3
B 15 204 820543 4119.97 994 971 198.9
B 6 203 444463 2229.42 994 971 198.9
B 2 249 158253 790.65 994 971 198.9
C 1 192 147331 626.57 979 982 233.6
C 1 16 29763 123.22 979 982 233.6
C 8 128 22410 91.74 979 982 233.6
D 13 223 218391 888.87 981 950 244.6
D 2 206 62410 251.24 981 950 244.6
D 5 233 54985 220.89 981 950 244.6

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