ASTROSAT CZTI

Data Quality Report

Orbit 05370

Creation date: 2024-06-27T14:54:27.509049
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/AS1G05_021T02_9000000680_05370cztM0_level2.evt modeM0/AS1G05_021T02_9000000680_05370cztM0_level2_quad_clean.evt
Size (bytes)496,811,52071,726,400
Size473.8 MB 68.4 MB
Events in quadrant A4,046,546436,893
Events in quadrant B3,302,072460,140
Events in quadrant C3,307,741454,904
Events in quadrant D3,968,074386,068

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162203
B0137652
C0137252
D0161562

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62112944.733537%
B6211400.644019%
C6211250.402512%
D62114316.939301%

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 7591 6212 189 189 2.49% 3.04%
B 7591 6212 7 7 0.09% 0.11%
C 7591 6212 2 2 0.03% 0.03%
D 7591 6212 426 426 5.61% 6.86%

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 1100954 7376.22 734 720 149.2
A 13 251 51853 342.81 734 720 149.2
A 14 111 38682 254.51 734 720 149.2
B 4 80 123697 841.97 764 747 146.0
B 4 81 62694 424.22 764 747 146.0
B 11 51 49439 333.45 764 747 146.0
C 1 16 403167 2392.26 728 734 168.2
C 9 247 53514 313.75 728 734 168.2
C 13 61 5976 31.16 728 734 168.2
D 7 237 1094608 6506.71 678 655 168.1
D 4 95 111070 656.74 678 655 168.1
D 2 136 84294 497.48 678 655 168.1

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