ASTROSAT CZTI

Data Quality Report

Orbit 43083

Creation date: 2024-06-27T22:47:48.154735
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/AS1T05_152T01_9000005846_43083cztM0_level2.fits modeM0/AS1T05_152T01_9000005846_43083cztM0_level2_quad_clean.evt
Size (bytes)156,268,80046,399,680
Size149.0 MB 44.3 MB
Events in quadrant A1,547,029321,749
Events in quadrant B1,302,211319,745
Events in quadrant C1,286,608305,362
Events in quadrant D1,449,565276,538

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061571
B054491
C052671
D060091

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2531200.790202%
B2531250.987752%
C253180.316081%
D2531843.318846%

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 4624 2532 13 13 0.28% 0.51%
B 4624 2532 16 16 0.35% 0.63%
C 4624 2532 3 3 0.06% 0.12%
D 4624 2532 63 63 1.36% 2.49%

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 293598 4786.02 294 289 61.3
A 15 237 59491 966.02 294 289 61.3
A 12 189 48773 791.13 294 289 61.3
B 3 112 63720 1123.15 290 282 56.5
B 5 255 51767 911.53 290 282 56.5
B 0 229 27043 473.8 290 282 56.5
C 15 214 113868 1695.73 286 288 67.0
C 12 2 50544 750.31 286 288 67.0
C 1 128 2900 39.0 286 288 67.0
D 13 249 114892 1635.44 283 275 70.1
D 1 52 91244 1298.02 283 275 70.1
D 12 218 35650 504.76 283 275 70.1

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