ASTROSAT CZTI

Data Quality Report

Orbit 23380

Creation date: 2024-06-27T18:53:35.145769
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/AS1A07_138T09_9000003458_23380cztM0_level2.evt modeM0/AS1A07_138T09_9000003458_23380cztM0_level2_quad_clean.evt
Size (bytes)967,207,680135,881,280
Size922.4 MB 129.6 MB
Events in quadrant A5,604,237840,288
Events in quadrant B6,052,765843,282
Events in quadrant C8,596,422801,258
Events in quadrant D8,238,465810,808

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02400
B02400
C02400
D02400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242634
B0254162
C0330712
D0324612

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A118451030.869565%
B118472041.721955%
C118474784.034777%
D118475364.524352%

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 13226 11847 0 0 0.00% 0.00%
B 13227 11849 35 35 0.26% 0.30%
C 13227 11848 52 52 0.39% 0.44%
D 13227 11848 406 406 3.07% 3.43%

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 18524 59.15 1454 1423 289.1
A 3 137 12796 39.34 1454 1423 289.1
A 0 226 12445 38.12 1454 1423 289.1
B 0 189 357334 1300.66 1439 1403 273.7
B 0 229 41274 145.7 1439 1403 273.7
B 0 190 33956 118.96 1439 1403 273.7
C 0 239 2780214 8696.67 1385 1395 319.5
C 14 238 218121 678.27 1385 1395 319.5
C 7 247 81715 251.37 1385 1395 319.5
D 1 52 2703077 7974.74 1404 1366 338.8
D 7 238 81680 237.07 1404 1366 338.8
D 13 104 52620 151.29 1404 1366 338.8

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