ASTROSAT CZTI

Data Quality Report

Orbit 05604

Creation date: 2024-06-27T14:57:07.621904
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/AS1A02_028T01_9000000724_05604cztM0_level2.evt modeM0/AS1A02_028T01_9000000724_05604cztM0_level2_quad_clean.evt
Size (bytes)484,482,24087,992,640
Size462.0 MB 83.9 MB
Events in quadrant A3,224,542555,832
Events in quadrant B3,627,005558,832
Events in quadrant C3,264,510549,976
Events in quadrant D4,082,024513,408

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144513
B0153512
C0144542
D0172262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6991670.958375%
B6991680.972679%
C6991590.843942%
D69912954.219711%

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 7671 6992 0 0 0.00% 0.00%
B 7671 6992 0 0 0.00% 0.00%
C 7671 6992 0 0 0.00% 0.00%
D 7671 6992 181 181 2.36% 2.59%

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 12 194 8137 43.31 836 817 169.0
A 0 226 8131 43.27 836 817 169.0
A 13 14 5472 27.54 836 817 169.0
B 15 204 355689 2192.68 841 821 161.8
B 12 111 15301 89.47 841 821 161.8
B 0 219 13824 80.34 841 821 161.8
C 1 16 44184 228.93 818 822 189.4
C 7 247 26664 136.43 818 822 189.4
C 13 61 6496 29.96 818 822 189.4
D 2 63 718821 3673.06 807 782 195.5
D 2 136 257867 1315.09 807 782 195.5
D 13 238 26992 134.07 807 782 195.5

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