Using known values of rotational and centrifugal distortion constants in conjunction with electric dipole moment of NH₂CHO, we have calculated energies of rotational levels in the ground vibrational state, and the probabilities for radiative transitions between the levels. The radiative transition probabilities in conjunction with the scaled values of collisional rate coefficients are used in the Sobolev LVG analysis of NH₂CHO. There are some strong lines. For ortho-NH₂CHO, we have found one transition 1₁₀-1₁₁ showing anomalous absorption and five transitions 6₁₅-5₁₄, 7₁₇-6₁₆, 7₁₆-6₁₅, 8₁₈-7₁₇, 8₁₇-7₁₆ showing emission feature. For para-NH₂CHO, six emission transitions 5₀₅-4₀₄, 6₀₆-5₀₅, 7₀₇-6₀₆, 8₀₈-7₀₇, 9₀₉-8₀₈, 10_0.10-9₀₉ are found. Out of these 12 transitions, three transitions, 1₁₀-1₁₁, 5₀₅-4₀₄, and 8₀₈-7₀₇, are already found in the ISM. Other relatively weaker lines are also found in the ISM. In addition to the observed lines, 9 transitions may play important role in the identification of NH₂CHO in a cosmic object.

使用已知的旋转和离心变形常数值以及NH ₂ CHO的电偶极矩，我们已经计算出了在地面振动状态下旋转能级的能量，以及两个能级之间的辐射跃迁的概率。NH ₂ CHO的Sobolev LVG分析中使用了辐射跃迁几率与碰撞率系数的标度值。有一些强项。对于邻- NH ₂ CHO，我们已发现一种过渡1 ₁₀ -1 ₁₁表示反常吸收和五个过渡6 ₁₅ -5 ₁₄ 7 ₁₇ -6 ₁₆，7 ₁₆-6 ₁₅ 8 ₁₈ -7 ₁₇，8 ₁₇ -7 ₁₆表示发射功能。对于对- NH ₂ CHO，六个发射跃迁5 ₀₅ -4 ₀₄，6 ₀₆ -5 ₀₅ 7 ₀₇ -6 ₀₆ 8 ₀₈ -7 ₀₇，9 ₀₉ -8 ₀₈ 10 _0.10 -9 ₀₉中找到。这些12个转变，三个过渡，1 ₁₀ -1 ₁₁，5 ₀₅ -4 ₀₄，和8 ₀₈ -7 ₀₇，已经在ISM中找到。在ISM中也发现了其他相对较弱的路线。除观察到的谱线外，9个跃迁在宇宙物体中NH ₂ CHO的识别中也可能起重要作用。