ASTROSAT CZTI

Data Quality Report

Orbit 16443

Creation date: 2024-06-27T17:22:45.737580
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/AS1A05_069T04_9000002428_16443cztM0_level2.evt modeM0/AS1A05_069T04_9000002428_16443cztM0_level2_quad_clean.evt
Size (bytes)503,170,56081,492,480
Size479.9 MB 77.7 MB
Events in quadrant A3,724,733515,712
Events in quadrant B3,735,385534,657
Events in quadrant C4,021,484496,613
Events in quadrant D3,329,697480,962

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149823
B0151032
C0160762
D0141332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62911161.843904%
B62911051.669051%
C62911933.067875%
D6291620.985535%

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 8962 6294 74 74 0.83% 1.18%
B 8962 6293 13 13 0.15% 0.21%
C 8962 6293 14 14 0.16% 0.22%
D 8962 6294 30 30 0.33% 0.48%

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 15 174 630472 3919.4 805 788 160.7
A 0 226 7182 39.8 805 788 160.7
A 12 194 5832 31.4 805 788 160.7
B 15 35 146612 945.12 817 797 154.3
B 0 198 73970 474.28 817 797 154.3
B 0 244 71612 459.0 817 797 154.3
C 3 233 819611 4588.59 771 776 178.5
C 14 238 121522 676.64 771 776 178.5
C 4 254 63762 352.96 771 776 178.5
D 5 222 350293 1875.39 773 752 186.4
D 2 234 22013 114.07 773 752 186.4
D 2 120 18145 93.32 773 752 186.4

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