ASTROSAT CZTI

Data Quality Report

Orbit 47994

Creation date: 2024-08-13T01:08:01.657273
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/AS1A13_062T02_9000006384_47994cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47994cztM0_level2_quad_clean.evt
Size (bytes)476,475,840111,781,440
Size454.4 MB 106.6 MB
Events in quadrant A7,206,266722,091
Events in quadrant B3,107,402766,102
Events in quadrant C3,155,900748,179
Events in quadrant D3,652,158684,845

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258542
B0139452
C0142152
D0157222

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66503425.142857%
B6650791.187970%
C6649400.601594%
D66491422.135659%

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 7640 6651 61 61 0.80% 0.92%
B 7640 6651 3 3 0.04% 0.05%
C 7639 6650 18 18 0.24% 0.27%
D 7639 6650 92 92 1.20% 1.38%

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 10 83 4165535 26553.24 755 740 156.8
A 14 248 101761 644.07 755 740 156.8
A 10 15 9089 53.23 755 740 156.8
B 7 221 67582 445.22 759 737 150.1
B 0 197 20516 131.74 759 737 150.1
B 12 111 19047 121.95 759 737 150.1
C 14 254 120239 677.52 748 753 176.4
C 15 208 76349 428.65 748 753 176.4
C 12 2 16616 89.95 748 753 176.4
D 2 249 294152 1559.35 749 726 188.2
D 11 192 161934 856.7 749 726 188.2
D 5 222 97530 514.44 749 726 188.2

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