ASTROSAT CZTI

Data Quality Report

Orbit 14330

Creation date: 2024-06-27T16:53:36.304042
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_078T01_9000002110_14330cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14330cztM0_level2_quad_clean.evt
Size (bytes)431,375,04072,204,480
Size411.4 MB 68.9 MB
Events in quadrant A3,034,230454,918
Events in quadrant B2,948,214458,857
Events in quadrant C2,943,800443,521
Events in quadrant D3,750,056429,803

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122922
B0120081
C0119591
D0147671

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5711631.103134%
B5711781.365785%
C5711340.595342%
D5711881.540886%

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 6972 5713 0 0 0.00% 0.00%
B 6972 5712 0 0 0.00% 0.00%
C 6972 5713 0 0 0.00% 0.00%
D 6972 5713 37 37 0.53% 0.65%

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 12 189 156730 1039.56 746 735 150.1
A 0 226 6901 41.09 746 735 150.1
A 12 194 5580 32.29 746 735 150.1
B 0 189 34268 237.9 735 720 141.0
B 0 214 17969 122.32 735 720 141.0
B 12 111 16397 111.17 735 720 141.0
C 3 233 183579 1114.06 708 713 164.1
C 13 61 4949 25.81 708 713 164.1
C 3 202 1652 5.72 708 713 164.1
D 1 52 450432 2635.81 714 696 170.6
D 5 222 210079 1227.15 714 696 170.6
D 2 120 115339 671.9 714 696 170.6

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