ASTROSAT CZTI

Data Quality Report

Orbit 39663

Creation date: 2024-06-27T22:07:27.701284
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/AS1A12_051T01_9000005490_39663cztM0_level2.fits modeM0/AS1A12_051T01_9000005490_39663cztM0_level2_quad_clean.evt
Size (bytes)570,623,04087,883,200
Size544.2 MB 83.8 MB
Events in quadrant A7,273,914483,429
Events in quadrant B3,293,220664,558
Events in quadrant C5,618,768565,802
Events in quadrant D4,534,920583,857

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0252742
B0131391
C0201761
D0170661

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5188161931.206631%
B51881923.700848%
C518876914.822668%
D51882084.009252%

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 7221 5189 1575 1575 21.81% 30.35%
B 7221 5189 140 140 1.94% 2.70%
C 7221 5189 766 766 10.61% 14.76%
D 7221 5189 214 214 2.96% 4.12%

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 15 222 4610421 40334.83 571 563 114.3
A 10 83 410104 3583.36 571 563 114.3
A 15 174 14282 120.04 571 563 114.3
B 5 172 836124 7345.59 601 588 113.7
B 15 32 28537 245.71 601 588 113.7
B 0 186 17906 152.25 601 588 113.7
C 15 208 2982676 23155.78 556 561 128.8
C 15 214 208564 1615.12 556 561 128.8
C 3 233 207238 1604.82 556 561 128.8
D 13 174 1172648 8281.39 584 569 141.5
D 9 64 584270 4124.17 584 569 141.5
D 1 52 268495 1893.05 584 569 141.5

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