ASTROSAT CZTI

Data Quality Report

Orbit 28414

Creation date: 2024-06-27T19:51:30.514618
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_058T13_9000004088_28414cztM0_level2.evt modeM0/AS1A10_058T13_9000004088_28414cztM0_level2_quad_clean.evt
Size (bytes)499,593,60095,613,120
Size476.4 MB 91.2 MB
Events in quadrant A3,248,244632,726
Events in quadrant B3,549,770654,553
Events in quadrant C3,243,627607,469
Events in quadrant D4,672,228572,106

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134180
B0143670
C0132880
D0180360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6143871.416246%
B61431342.181345%
C61431101.790656%
D61431893.076673%

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 7483 6143 1 1 0.01% 0.02%
B 7483 6143 13 13 0.17% 0.21%
C 7483 6143 0 0 0.00% 0.00%
D 7483 6144 154 154 2.06% 2.51%

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 6 16 15568 88.42 835 820 166.8
A 13 254 9876 54.29 835 820 166.8
A 8 192 8957 48.78 835 820 166.8
B 10 245 161216 1024.39 838 818 156.6
B 0 190 38061 237.85 838 818 156.6
B 10 246 37911 236.9 838 818 156.6
C 14 238 132058 702.73 797 805 186.8
C 13 61 5483 25.05 797 805 186.8
C 0 10 4093 17.6 797 805 186.8
D 1 52 1146604 6053.57 789 770 189.3
D 8 195 446517 2354.93 789 770 189.3
D 2 250 51032 265.54 789 770 189.3

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