ASTROSAT CZTI

Data Quality Report

Orbit 30869

Creation date: 2024-06-27T20:20:33.493311
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_071T46_9000004460_30869cztM0_level2.evt modeM0/AS1A10_071T46_9000004460_30869cztM0_level2_quad_clean.evt
Size (bytes)230,051,52040,438,080
Size219.4 MB 38.6 MB
Events in quadrant A1,013,084281,338
Events in quadrant B3,538,051251,276
Events in quadrant C1,023,918266,826
Events in quadrant D1,240,273264,946

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044320
B0120730
C044400
D050860

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A220730.135931%
B220868731.114130%
C220870.317029%
D220830.135870%

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 2207 2207 0 0 0.00% 0.00%
B 2208 2208 472 472 21.38% 21.38%
C 2208 2208 0 0 0.00% 0.00%
D 2208 2208 4 4 0.18% 0.18%

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 3861 65.82 262 256 54.8
A 3 137 2640 43.53 262 256 54.8
A 0 226 2230 36.04 262 256 54.8
B 6 36 1837216 38696.23 239 234 47.5
B 6 159 557255 11733.71 239 234 47.5
B 5 172 140280 2950.08 239 234 47.5
C 14 238 39131 654.87 247 247 59.4
C 3 233 11519 189.84 247 247 59.4
C 2 114 4938 79.0 247 247 59.4
D 8 195 242261 3964.72 253 248 61.0
D 2 234 10733 171.77 253 248 61.0
D 2 250 10219 163.35 253 248 61.0

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