ASTROSAT CZTI

Data Quality Report

Orbit 14071

Creation date: 2024-06-27T16:50:00.181687
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/AS1G08_055T01_9000002076_14071cztM0_level2.evt modeM0/AS1G08_055T01_9000002076_14071cztM0_level2_quad_clean.evt
Size (bytes)527,604,480108,927,360
Size503.2 MB 103.9 MB
Events in quadrant A3,868,325718,036
Events in quadrant B3,400,305756,458
Events in quadrant C2,965,467718,047
Events in quadrant D5,313,630662,983

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015883233
B0142381
C0131481
D0202461

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62642664.246488%
B6378500.783945%
C6378140.219505%
D63784657.290687%

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 7384 6269 194 194 2.63% 3.09%
B 7384 6380 5 5 0.07% 0.08%
C 7384 6380 4 4 0.05% 0.06%
D 7384 6380 352 352 4.77% 5.52%

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 15 222 919047 6123.03 747 733 150.0
A 12 189 57698 379.82 747 733 150.0
A 8 15 11508 71.84 747 733 150.0
B 4 48 116494 805.85 773 757 143.6
B 0 85 93449 645.39 773 757 143.6
B 3 209 45841 313.91 773 757 143.6
C 3 233 48487 282.58 737 740 169.0
C 0 207 23039 131.97 737 740 169.0
C 12 4 15347 86.45 737 740 169.0
D 10 172 1341191 7465.24 706 689 179.6
D 15 0 478897 2663.13 706 689 179.6
D 1 52 300060 1667.19 706 689 179.6

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