ASTROSAT CZTI

Data Quality Report

Orbit 04323

Creation date: 2024-06-27T14:40:23.135046
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_219T01_9000000540_04323cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04323cztM0_level2_quad_clean.evt
Size (bytes)886,533,12056,675,520
Size845.5 MB 54.0 MB
Events in quadrant A3,174,905392,665
Events in quadrant B16,742,99989,313
Events in quadrant C3,252,337385,061
Events in quadrant D3,222,539377,148

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139483
B0543302
C0144352
D0143422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6740901.335312%
B6740606089.910979%
C67401271.884273%
D6740901.335312%

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 7750 6740 4 4 0.05% 0.06%
B 7749 6739 5752 5752 74.23% 85.35%
C 7750 6740 34 34 0.44% 0.50%
D 7750 6740 25 25 0.32% 0.37%

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 15 234 28612 170.02 803 784 163.7
A 8 15 19055 111.63 803 784 163.7
A 13 14 17217 100.4 803 784 163.7
B 3 0 15265019 214565.9 365 356 71.1
B 15 204 20364 281.24 365 356 71.1
B 14 167 14263 195.48 365 356 71.1
C 9 247 236155 1305.94 771 774 180.2
C 13 61 6479 31.65 771 774 180.2
C 7 174 3323 14.14 771 774 180.2
D 4 95 82973 436.99 772 748 188.2
D 13 239 38587 201.1 772 748 188.2
D 13 223 36956 192.43 772 748 188.2

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