ASTROSAT CZTI

Data Quality Report

Orbit 05285

Creation date: 2024-06-27T14:53:30.428615
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_240T02_9000000670_05285cztM0_level2.evt modeM0/AS1G05_240T02_9000000670_05285cztM0_level2_quad_clean.evt
Size (bytes)464,921,28055,589,760
Size443.4 MB 53.0 MB
Events in quadrant A2,976,517328,372
Events in quadrant B2,809,049332,360
Events in quadrant C2,741,718325,832
Events in quadrant D5,150,807283,354

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015624
B015636
C015529
D015527

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122
B0122
C0121
D0132

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166013684
B0160973783
C0159233686
D02998810843

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6016530.880984%
B5988350.584502%
C6002110.183272%
D551461411.135292%

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 8923 6635 20 20 0.22% 0.30%
B 8923 6620 0 0 0.00% 0.00%
C 8923 6613 0 0 0.00% 0.00%
D 8923 5984 449 449 5.03% 7.50%

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 13 251 232614 1596.41 708 690 145.3
A 12 194 7093 44.07 708 690 145.3
A 0 226 7089 44.05 708 690 145.3
B 15 204 30068 212.57 713 697 138.2
B 12 111 12511 85.5 713 697 138.2
B 15 54 10821 73.27 713 697 138.2
C 8 128 18515 109.65 693 697 162.5
C 8 112 7412 41.32 693 697 162.5
C 8 144 7099 39.4 693 697 162.5
D 11 145 2261334 15159.36 604 585 149.1
D 1 239 255965 1712.44 604 585 149.1
D 2 136 132985 887.8 604 585 149.1

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