ASTROSAT CZTI

Data Quality Report

Orbit 07644

Creation date: 2024-06-27T15:22:13.375373
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/AS1G06_124T01_9000001054_07644cztM0_level2.evt modeM0/AS1G06_124T01_9000001054_07644cztM0_level2_quad_clean.evt
Size (bytes)637,945,92059,290,560
Size608.4 MB 56.5 MB
Events in quadrant A8,489,630100,013
Events in quadrant B3,454,167412,428
Events in quadrant C3,323,177408,973
Events in quadrant D3,585,933392,496

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0294132
B0145551
C0143081
D0152721

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6892266738.697040%
B68921051.523506%
C6892650.943122%
D68921392.016831%

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 9192 6893 2494 2494 27.13% 36.18%
B 9192 6893 6 6 0.07% 0.09%
C 9192 6893 0 0 0.00% 0.00%
D 9192 6893 28 28 0.30% 0.41%

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 0 128 6152599 49673.57 604 591 123.8
A 0 226 5754 41.68 604 591 123.8
A 12 194 5289 37.93 604 591 123.8
B 0 214 35797 209.34 868 849 166.9
B 4 80 30340 176.65 868 849 166.9
B 12 111 17095 97.31 868 849 166.9
C 9 68 29674 146.57 844 849 196.7
C 13 61 6400 28.23 844 849 196.7
C 3 202 2176 6.75 844 849 196.7
D 14 34 150909 719.18 843 816 208.7
D 2 152 126148 600.53 843 816 208.7
D 13 104 62052 293.42 843 816 208.7

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