ASTROSAT CZTI

Data Quality Report

Orbit 10233

Creation date: 2024-06-27T15:56:40.425196
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/AS1A03_099T01_9000001472_10233cztM0_level2.evt modeM0/AS1A03_099T01_9000001472_10233cztM0_level2_quad_clean.evt
Size (bytes)498,087,360100,137,600
Size475.0 MB 95.5 MB
Events in quadrant A3,431,948659,259
Events in quadrant B3,844,068658,955
Events in quadrant C3,243,719652,540
Events in quadrant D4,134,164619,084

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140463
B0153874
C0136672
D0164006

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63421752.759382%
B63412804.415707%
C63421592.507096%
D63402914.589905%

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 8947 6342 2 2 0.02% 0.03%
B 8947 6342 67 67 0.75% 1.06%
C 8947 6342 0 0 0.00% 0.00%
D 8947 6342 101 101 1.13% 1.59%

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 62638 357.8 865 848 172.7
A 15 223 20399 113.21 865 848 172.7
A 15 239 8635 45.09 865 848 172.7
B 4 239 291683 1830.64 846 830 158.9
B 0 85 79899 497.66 846 830 158.9
B 0 214 77842 484.72 846 830 158.9
C 13 61 6263 28.47 829 835 190.6
C 1 0 3893 16.04 829 835 190.6
C 14 67 3207 12.44 829 835 190.6
D 1 52 563548 2881.83 829 810 195.3
D 2 14 169565 864.21 829 810 195.3
D 2 152 156504 797.32 829 810 195.3

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