ASTROSAT CZTI

Data Quality Report

Orbit 44092

Creation date: 2024-06-27T22:59:17.785103
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_038T01_9000005944_44092cztM0_level2.fits modeM0/AS1A13_038T01_9000005944_44092cztM0_level2_quad_clean.evt
Size (bytes)352,612,80038,070,720
Size336.3 MB 36.3 MB
Events in quadrant A6,764,62835,181
Events in quadrant B2,490,133298,889
Events in quadrant C1,406,314321,122
Events in quadrant D2,162,220288,695

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220864
B094811
C061461
D083801

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2924267891.586867%
B292446515.902873%
C2924381.299590%
D29241485.061560%

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 3824 2925 2038 2038 53.29% 69.68%
B 3824 2925 222 222 5.81% 7.59%
C 3824 2925 0 0 0.00% 0.00%
D 3824 2925 84 84 2.20% 2.87%

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 15 223 5781875 169936.81 153 149 34.0
A 10 83 272425 8002.75 153 149 34.0
A 14 238 59534 1745.45 153 149 34.0
B 0 200 733991 10715.16 337 327 68.5
B 4 171 231639 3378.31 337 327 68.5
B 15 36 59464 863.7 337 327 68.5
C 14 96 23047 273.81 348 350 82.9
C 14 254 13079 153.56 348 350 82.9
C 3 233 11364 132.87 348 350 82.9
D 1 52 302147 3372.7 347 334 89.5
D 13 249 285266 3184.05 347 334 89.5
D 13 171 71766 798.24 347 334 89.5

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