ASTROSAT CZTI

Data Quality Report

Orbit 43055

Creation date: 2024-06-27T22:47:25.360835
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/AS1A09_006T08_9000005840_43055cztM0_level2.fits modeM0/AS1A09_006T08_9000005840_43055cztM0_level2_quad_clean.evt
Size (bytes)489,821,76087,013,440
Size467.1 MB 83.0 MB
Events in quadrant A3,569,211645,332
Events in quadrant B6,257,556482,374
Events in quadrant C2,540,796627,860
Events in quadrant D5,363,212517,825

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138822
B0220152
C0106322
D0193672

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51581312.539744%
B5158144828.072896%
C515830.058162%
D515872013.958899%

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 7280 5159 137 137 1.88% 2.66%
B 7280 5159 1274 1274 17.50% 24.69%
C 7280 5159 2 2 0.03% 0.04%
D 7280 5159 663 663 9.11% 12.85%

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 10 83 621302 4995.86 596 583 124.2
A 15 237 505380 4062.86 596 583 124.2
A 12 189 119696 958.68 596 583 124.2
B 0 186 2677071 26392.12 517 503 101.4
B 0 229 1353620 13342.32 517 503 101.4
B 4 171 136728 1343.24 517 503 101.4
C 15 214 229677 1675.06 575 578 136.8
C 15 111 36341 261.48 575 578 136.8
C 14 254 11504 79.89 575 578 136.8
D 1 52 1276036 9292.18 550 533 137.3
D 2 16 1221754 8896.73 550 533 137.3
D 10 118 211908 1539.89 550 533 137.3

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