ASTROSAT CZTI

Data Quality Report

Orbit 47501

Creation date: 2024-07-10T18:14:35.542237
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/AS1A13_037T05_9000006332_47501cztM0_level2.fits modeM0/AS1A13_037T05_9000006332_47501cztM0_level2_quad_clean.evt
Size (bytes)206,170,56047,232,000
Size196.6 MB 45.0 MB
Events in quadrant A2,881,454309,332
Events in quadrant B1,650,345327,936
Events in quadrant C1,311,981312,841
Events in quadrant D1,571,381282,307

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104621
B066651
C057501
D065051

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A27651926.943942%
B27651134.086799%
C2765491.772152%
D27651003.616637%

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 3795 2765 18 18 0.47% 0.65%
B 3795 2766 21 21 0.55% 0.76%
C 3795 2766 0 0 0.00% 0.00%
D 3795 2765 37 37 0.97% 1.34%

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 1557343 22018.01 332 325 70.7
A 13 248 29192 408.21 332 325 70.7
A 9 191 10605 145.37 332 325 70.7
B 5 32 169157 2507.85 333 322 67.3
B 0 200 135929 2014.28 333 322 67.3
B 0 198 14115 204.88 333 322 67.3
C 0 207 7139 85.07 333 335 80.0
C 3 233 5190 60.7 333 335 80.0
C 13 61 2204 23.37 333 335 80.0
D 7 38 152107 1810.11 329 318 83.9
D 12 33 58075 688.76 329 318 83.9
D 13 112 36343 429.6 329 318 83.9

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