ASTROSAT CZTI

Data Quality Report

Orbit 00367

Creation date: 2024-06-27T13:59:06.500798
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/AS1P01_162T05_9000000052_00367cztM0_level2.evt modeM0/AS1P01_162T05_9000000052_00367cztM0_level2_quad_clean.evt
Size (bytes)895,294,08052,922,880
Size853.8 MB 50.5 MB
Events in quadrant A5,334,053343,349
Events in quadrant B11,821,265270,045
Events in quadrant C4,895,292336,852
Events in quadrant D4,758,815328,680

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190963
B0387362
C0178312
D0174422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A459220.043554%
B4592239552.155923%
C459250.108885%
D459230.065331%

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 6837 4593 87 87 1.27% 1.89%
B 6837 4593 3480 3480 50.90% 75.77%
C 6837 4593 38 38 0.56% 0.83%
D 6837 4593 34 34 0.50% 0.74%

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 0 238 187464 636.69 1315 1303 292.4
A 0 69 26821 87.27 1315 1303 292.4
A 12 243 16352 51.47 1315 1303 292.4
B 2 2 7386437 27671.11 1139 1143 266.9
B 0 220 27211 97.67 1139 1143 266.9
B 5 46 14888 51.5 1139 1143 266.9
C 14 206 30247 83.43 1233 1275 347.2
C 0 64 14705 38.68 1233 1275 347.2
C 5 17 5280 11.53 1233 1275 347.2
D 7 85 58792 156.6 1167 1212 367.7
D 2 166 46797 123.98 1167 1212 367.7
D 1 5 39534 104.23 1167 1212 367.7

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