ASTROSAT CZTI

Data Quality Report

Orbit 07235

Creation date: 2024-06-27T15:17:09.360419
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/AS1G05_246T03_9000000990_07235cztM0_level2.evt modeM0/AS1G05_246T03_9000000990_07235cztM0_level2_quad_clean.evt
Size (bytes)455,725,44098,254,080
Size434.6 MB 93.7 MB
Events in quadrant A3,112,904632,292
Events in quadrant B3,248,948655,569
Events in quadrant C3,881,339638,898
Events in quadrant D3,132,427611,013

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133792
B0139701
C0159261
D0138471

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6279280.445931%
B6279520.828157%
C6279310.493709%
D6279691.098901%

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 7559 6280 2 2 0.03% 0.03%
B 7559 6280 18 18 0.24% 0.29%
C 7559 6280 0 0 0.00% 0.00%
D 7559 6280 36 36 0.48% 0.57%

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 8 15 136850 884.19 757 744 153.9
A 13 248 37452 238.47 757 744 153.9
A 3 1 11905 72.51 757 744 153.9
B 0 214 118084 810.77 770 753 144.7
B 4 81 46919 319.01 770 753 144.7
B 15 85 30662 206.67 770 753 144.7
C 9 68 971950 5629.04 745 749 172.5
C 13 61 5812 29.34 745 749 172.5
C 8 222 2101 7.84 745 749 172.5
D 2 14 189732 1040.51 737 714 181.7
D 2 216 77980 425.34 737 714 181.7
D 14 34 32820 176.74 737 714 181.7

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