ASTROSAT CZTI

Data Quality Report

Orbit 11328

Creation date: 2024-06-27T16:11:20.352008
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/AS1G08_028T01_9000001656_11328cztM0_level2.evt modeM0/AS1G08_028T01_9000001656_11328cztM0_level2_quad_clean.evt
Size (bytes)197,136,00020,937,600
Size188.0 MB 20.0 MB
Events in quadrant A2,004,896114,285
Events in quadrant B1,277,278125,197
Events in quadrant C925,979127,761
Events in quadrant D1,618,945115,576

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072650
B050650
C041550
D061750

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A207443921.166827%
B2074904.339441%
C207400.000000%
D20741406.750241%

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 2074 2074 294 294 14.18% 14.18%
B 2074 2074 64 64 3.09% 3.09%
C 2074 2074 0 0 0.00% 0.00%
D 2074 2074 120 120 5.79% 5.79%

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 14 238 1080091 22365.48 220 215 48.3
A 15 174 49164 1013.79 220 215 48.3
A 8 15 12564 255.76 220 215 48.3
B 4 239 274572 5565.96 242 236 49.3
B 3 64 15803 315.84 242 236 49.3
B 0 219 15053 300.62 242 236 49.3
C 13 61 1758 26.84 237 237 56.7
C 14 234 1626 24.51 237 237 56.7
C 3 202 612 6.61 237 237 56.7
D 1 52 220996 3789.46 230 222 58.3
D 10 253 211674 3629.45 230 222 58.3
D 2 120 182568 3129.87 230 222 58.3

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