ASTROSAT CZTI

Data Quality Report

Orbit 29257

Creation date: 2024-06-27T20:01:58.720244
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/AS1A10_045T08_9000004208_29257cztM0_level2.evt modeM0/AS1A10_045T08_9000004208_29257cztM0_level2_quad_clean.evt
Size (bytes)685,624,32085,046,400
Size653.9 MB 81.1 MB
Events in quadrant A3,290,271533,325
Events in quadrant B5,704,511539,501
Events in quadrant C6,726,838515,355
Events in quadrant D4,587,924518,023

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139401
B0215231
C0249091
D0181821

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6738340.504601%
B673976011.277638%
C673969110.253747%
D67392583.828461%

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 7448 6739 1 1 0.01% 0.01%
B 7449 6740 305 305 4.09% 4.53%
C 7449 6740 56 56 0.75% 0.83%
D 7449 6740 145 145 1.95% 2.15%

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 13 254 13484 73.57 848 829 172.0
A 0 13 11658 62.95 848 829 172.0
A 1 113 8509 44.65 848 829 172.0
B 10 247 1747322 11222.14 817 798 155.6
B 0 183 312093 2000.2 817 798 155.6
B 0 229 195881 1253.49 817 798 155.6
C 3 233 3449504 18482.71 797 804 186.6
C 14 238 132198 704.18 797 804 186.6
C 10 9 16308 83.09 797 804 186.6
D 1 52 857904 4360.45 819 800 196.6
D 8 195 263599 1336.97 819 800 196.6
D 13 153 125249 633.12 819 800 196.6

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