ASTROSAT CZTI

Data Quality Report

Orbit 29976

Creation date: 2024-06-27T20:09:24.441647
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/AS1A10_053T11_9000004302_29976cztM0_level2.evt modeM0/AS1A10_053T11_9000004302_29976cztM0_level2_quad_clean.evt
Size (bytes)159,940,80033,258,240
Size152.5 MB 31.7 MB
Events in quadrant A930,821223,757
Events in quadrant B1,890,519214,131
Events in quadrant C937,493216,484
Events in quadrant D953,660214,386

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04810
B0486
C0488
D0477

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049421032
B090302109
C049741119
D051171209

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A194300.000000%
B1803512.828619%
C189840.210748%
D189220.105708%

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 2373 2139 0 0 0.00% 0.00%
B 2353 2002 29 29 1.23% 1.45%
C 2408 2087 0 0 0.00% 0.00%
D 2386 2092 1 1 0.04% 0.05%

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 13 254 3337 62.61 241 236 49.5
A 3 137 2153 38.7 241 236 49.5
A 0 226 2073 37.09 241 236 49.5
B 6 36 528151 12576.41 216 211 42.0
B 6 159 506029 12049.43 216 211 42.0
B 4 67 5762 132.23 216 211 42.0
C 14 238 37928 685.56 227 229 55.0
C 3 233 8246 145.78 227 229 55.0
C 2 114 4399 75.82 227 229 55.0
D 8 195 49455 893.67 231 226 55.1
D 2 250 27263 490.81 231 226 55.1
D 2 234 6882 120.83 231 226 55.1

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