ASTROSAT CZTI

Data Quality Report

Orbit 47245

Creation date: 2024-06-27T23:33:20.672727
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/AS1C09_005T01_9000006304_47245cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47245cztM0_level2_quad_clean.evt
Size (bytes)2,166,572,160472,446,720
Size2.0 GB 450.6 MB
Events in quadrant A30,947,0833,101,887
Events in quadrant B14,738,1423,285,761
Events in quadrant C14,032,1693,150,883
Events in quadrant D18,282,5212,805,983

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05844
B05822
C05822
D05822

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112799942
B063638515
C063020674
D075381665

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0602
B0613
C0591
D0591

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2850414695.153663%
B285203931.377980%
C285314221.479093%
D2851613334.674569%

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 38103 28557 683 683 1.79% 2.39%
B 38103 28557 104 104 0.27% 0.36%
C 38104 28565 244 244 0.64% 0.85%
D 38103 28562 1181 1181 3.10% 4.13%

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 10 83 14583886 22861.88 3128 3059 637.8
A 9 191 4193568 6570.47 3128 3059 637.8
A 13 254 45705 66.87 3128 3059 637.8
B 0 200 827687 1366.53 3164 3061 603.4
B 0 190 601983 992.5 3164 3061 603.4
B 5 32 244822 400.63 3164 3061 603.4
C 10 9 1497950 2048.08 3161 3175 729.8
C 14 254 106015 140.91 3161 3175 729.8
C 0 207 44233 56.26 3161 3175 729.8
D 2 37 2358203 3065.06 3105 3017 768.4
D 1 47 1882271 2445.68 3105 3017 768.4
D 12 1 1201213 1559.34 3105 3017 768.4

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