ASTROSAT CZTI

Data Quality Report

Orbit 01370

Creation date: 2024-06-27T14:11:40.926643
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/AS1G04_014T02_9000000232_01370cztM0_level2.evt modeM0/AS1G04_014T02_9000000232_01370cztM0_level2_quad_clean.evt
Size (bytes)1,116,368,64091,212,480
Size1.0 GB 87.0 MB
Events in quadrant A7,909,150611,855
Events in quadrant B8,235,318612,230
Events in quadrant C7,483,743596,761
Events in quadrant D9,767,974505,466

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0278902
B0288561
C0266671
D0337371

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6232480.770218%
B6232671.075096%
C6232480.770218%
D6232156225.064185%

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 7182 6233 322 322 4.48% 5.17%
B 7182 6232 351 351 4.89% 5.63%
C 7182 6232 181 181 2.52% 2.90%
D 7181 6231 1695 1695 23.60% 27.20%

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 4 32 247732 537.58 1899 1914 457.3
A 12 243 166020 358.88 1899 1914 457.3
A 15 127 154755 334.25 1899 1914 457.3
B 8 4 454035 972.68 1977 1986 464.7
B 5 191 120208 254.38 1977 1986 464.7
B 8 219 47756 98.48 1977 1986 464.7
C 15 241 206424 401.27 1823 1888 509.7
C 10 19 86055 165.13 1823 1888 509.7
C 3 111 21982 39.42 1823 1888 509.7
D 9 53 3412580 7120.69 1545 1603 479.0
D 13 73 503820 1048.42 1545 1603 479.0
D 10 125 38659 77.36 1545 1603 479.0

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