ASTROSAT CZTI

Data Quality Report

Orbit 38399

Creation date: 2024-06-27T21:52:12.896925
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_025T10_9000005384_38399cztM0_level2.fits modeM0/AS1A12_025T10_9000005384_38399cztM0_level2_quad_clean.evt
Size (bytes)303,863,04065,211,840
Size289.8 MB 62.2 MB
Events in quadrant A2,080,477434,910
Events in quadrant B1,891,871447,281
Events in quadrant C1,836,307430,165
Events in quadrant D5,135,733386,853

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085431
B081821
C078941
D0180111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3899300.769428%
B3899330.846371%
C389910.025648%
D38992005.129520%

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 5422 3900 14 14 0.26% 0.36%
B 5422 3900 22 22 0.41% 0.56%
C 5422 3900 0 0 0.00% 0.00%
D 5422 3900 244 244 4.50% 6.26%

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 247132 2738.68 437 428 90.1
A 9 143 63435 699.44 437 428 90.1
A 13 248 28744 314.34 437 428 90.1
B 0 183 76917 903.13 433 421 84.7
B 4 232 71957 844.57 433 421 84.7
B 0 213 13516 154.6 433 421 84.7
C 15 214 163189 1639.06 424 427 99.3
C 14 254 11329 109.79 424 427 99.3
C 15 159 3321 29.14 424 427 99.3
D 10 203 2956011 28212.51 418 405 104.8
D 2 153 153897 1465.15 418 405 104.8
D 12 235 127261 1210.89 418 405 104.8

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